Bubble-forming super-massive black hole found

Last Updated: Tuesday, October 30, 2012, 15:25
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Bubble-forming super-massive black hole found Washington: Bubbles in space! Astronomers have discovered giant bubbles in the Universe powered by a massive black hole, with a mass six billion times that of the Sun.

Astronomers used a brand-new radio telescope to produce one of the best images ever made at the lowest frequencies of a galaxy 2000 times more massive than Milky Way, hosting in its centre one of the most massive black holes discovered so far.

Researchers found that this bubble is surprisingly young, just about 40 million years, which is a mere instant on cosmic time scales. Like symbiotic species, a galaxy and its central black hole lead intimately connected lives. Some black holes actively accrete matter.

Part of this material do not fall into the black hole but is ejected in a narrow stream of particles, travelling at nearly the speed of light. When the stream slows down, it creates a tenuous bubble that can engulf the entire galaxy. Invisible to optical telescopes, the bubble is very prominent at low radio frequencies.

The new International LOFAR Telescope is ideally suited to detect this low frequency emission. Astronomers produced one of the best images ever of such a bubble, using LOFAR to detect frequencies from 20 to 160 MHz.

"The result is of great importance", says Francesco de Gasperin, lead author of the study that is being published in the journal Astronomy and Astrophysics.

"It shows the enormous potential of LOFAR, and provides compelling evidence of the close ties between black hole, host galaxy, and their surroundings," de Gasperin said.

The image was made during the test-phase of LOFAR, and targeted the giant elliptical galaxy Messier 87, at the centre of a galaxy cluster in the constellation of Virgo.



Every few minutes this black hole swallows an amount of matter similar to that of the whole Earth, converting part of it into radiation and a larger part into powerful jets of ultra-fast particles, which are responsible for the observed radio emission.



"This is the first time such high-quality images are possible at these low frequencies", says professor Heino Falcke, chairman of the board of the ILT and co-author of the study.

PTI

Now, a test to detect cancer, HIV with naked eye


 
HIV naked eye
Scientists have developed a new ten times cheaper ultra-sensitive sensor test to detect the early stages of several cancers and viruses, including HIV, with the naked eye.
Researchers from the Imperial College London claim that their visual sensor technology is ten times more sensitive than the current gold standard methods for measuring biomarkers.
These indicate the onset of diseases such as prostate cancer and infection by viruses including HIV. The colour of a liquid changes to give either a positive or negative result.
Researchers say their sensor would benefit countries where sophisticated detection equipment is scarce, enabling cheaper and simpler detection and treatments for patients.
The team tested the effectiveness of the sensor by detecting a biomarker called p24 in blood samples, which indicates HIV infection.
"Unfortunately, the existing gold standard detection methods can be too expensive to be implemented in parts of the world where resources are scarce," Professor Molly Stevens, from the Departments of Materials and Bioengineering, said.
"Our approach affords for improved sensitivity, does not require sophisticated instrumentation and it is ten times cheaper, which could allow more tests to be performed for better screening of many diseases," said Stevens.
Researchers also tested samples for the biomarker called Prostate Specific Antigen (PSA), which is an early indicator for Prostate Cancer. The team say the sensor can also be reconfigured for other viruses and diseases where the specific biomarker is known.
The sensor works by analysing serum, derived from blood, in a disposable container. If the result is positive for p24 or PSA, there is a reaction that generates irregular clumps of nanoparticles, which give off a distinctive blue hue in a solution inside the container.

If the results are negative the nanoparticles separate into ball-like shapes, creating a reddish hue. Both reactions can be easily seen by the naked eye.
The team also said that the sensor was so sensitive that it was able to detect minute levels of p24 in samples where patients had low viral loads, which could not be diagnosed using existing tests such as the Enzyme-linked Immunosorbent Assay (ELISA) test and the gold standard nucleic acid based test.
"We have developed a test that we hope will enable previously undetectable HIV infections and indicators of cancer to be picked up, which would mean people could be treated sooner," researcher Roberto de la Rica, said in a statement.

Worth your salt

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Worth your salt
In which we spy on all things newsy and quirky that are worth a glance...

Have you heard about Salt Room Therapy? This drug-free treatment is the latest buzzword among people suffering from chronic respiratory and skin problems. It replicates the Halo Therapy — an ancient line of treatment in which dry aerosol micro particles and minerals were used to treat respiratory diseases. Practised in the old salt mines in Eastern Europe since the early 19th century, the treatment came to be later associated with spas in the region.

The process: The temperature, salt level and humidity of the room are fixed according to the treatment being sought. You need to breathe the air containing negatively-charged dry salt particles during an hour-long session. Since particles of bigger size usually cannot penetrate beyond the nose or throat, it is the smaller salt particles — known for their anti inflammatory properties — that enter the lungs and cleanse the system. In India, the facility is available in Kochi and Delhi.

Disclaimer: Consult your personal physician before going for any therapy.
Salt facts
In 1843, Polish physician Dr Feliks Boczkopwski documented that the miners at Wieliczka salt mines did not suffer from lung diseases.
Use of caves as therapy centres started when German physicians noticed improvements in the respiratory health of patients who hid in salt caves to escape bombing during World War II.

China unveils Asia's biggest radio telescope

Last Updated: Sunday, October 28, 2012, 19:39
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China unveils Asia`s biggest radio telescope Beijing: China today unveiled Asia's biggest radio telescope to be used in collecting accurate data from satellites and space probes.

The 65 meter diameter telescope was unveiled at the foot of Sheshan Mountain in Shanghai.

The sprawling telescope with the size of about 10 basketball courts can pick up eight different frequency bands and also track Earth satellites, lunar exploration satellites and deep space probes, official media here reported.

"We hope that the new radio telescope will go into operation earlier so that we can use it to observe the unmanned lunar probe Chang'e-2," Wu Weiren, chief designer of the lunar orbiter project said.

The telescope will be used for Very Long Baseline Interferometry (VLBI), a type of astronomical interferometry used in radio astronomy, as it can collect accurate data and increase its angular resolution during astronomical observation, state run Xinhua reported.

China's VLBI system is made up of four telescopes in the cities of Shanghai, Beijing, Kunming, Urumqi, respectively, as well as a data center in Shanghai.

Radio telescopes differ from optical ones in that they use radio antennae to track and collect data from satellites and space probes.

The first radio antenna used to identify astronomical radio sources was built by American radio engineer Karl Guthe Jansky, an engineer with Bell Telephone Laboratories, in the early 1930s.

medical mysteries -Autisim explained


 Autism Spectrum Disorder
 http://www.youtube.com/watch?v=rLOfsKvvBKw&feature=share&list=LPGz0r80HsMHc


Autistic Girl Expresses Unimaginable   Intelligence" 

Bacteria that function as living electrical cables found

Last Updated: Thursday, October 25, 2012, 21:52
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Washington: Danish scientists have discovered that some bacteria form a kind of gigantic power lines to survive between the different layers of marine mud.

Researchers at Aarhus University, Denmark, made a sensational discovery almost three years ago when they measured electric currents in the seabed.

It was unclear as to what was conducting the current, but the researchers imagined the electric currents might run between different bacteria via a joint external wiring network.

The researchers have now solved the mystery. It turns out that the whole process takes place inside bacteria that are one centimetre long.

They make up a kind of live electric cable that no one had ever imagined existed. Each one of these 'cable bacteria' contains a bundle of insulated wires that conduct an electric current from one end to the other.

"Our experiments showed that the electric connections in the seabed must be solid structures built by bacteria," says PhD student Christian Pfeffer, Aarhus University.

He could interrupt the electric currents by pulling a thin wire horizontally through the seafloor. Just as when an excavator cuts our electric cables.

In microscopes, scientists found a hitherto unknown type of long, multi-cellular bacteria that was always present when scientists measured the electric currents.

"The incredible idea that these bacteria should be electric cables really fell into place when, inside the bacteria, we saw wire-like strings enclosed by a membrane," says Nils Risgaard-Petersen, Aarhus University. Kilometers of living cables

The bacterium is one hundred times thinner than a hair and the whole bacterium functions as an electric cable with a number of insulated wires within it. Quite similar to the electric cables we know from our daily lives.

"Such unique insulated biological wires seem simple but with incredible complexity at nanoscale," says PhD student Jie Song, Aarhus University, who used nanotools to map the electrical properties of the cable bacteria.

earthquake 'caused by groundwater extraction

Lorca earthquake 'caused by groundwater extraction'

Police officer inspects earthquake damage The relatively modest Magnitude 5.1 quake resulted in extensive damage and nine deaths

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Scientists studying the fault beneath the Spanish city of Lorca say that groundwater removal may be implicated in a deadly 2011 earthquake there.
Detailed surface maps from satellite studies allowed them to infer which parts of the ground moved where.
They report in Nature Geoscience that those shifts correlate with locations where water has been drained for years.
The study highlights how human activity such as drainage or borehole drilling can have far-reaching seismic effects.
Pablo Gonzalez of the University of Western Ontario and colleagues used satellite radar data to trace the ground movements of the Lorca event back to their source, finding that the earthquake resulted from slippage on a comparatively shallow fault that borders a large water basin south of the city.
That the slippage happened at a depth of just 3km explains why the fairly mild Magnitude 5.1 quake caused so much damage in the area.
The team went on to study potential reasons for the slippage, finding that the water table in the adjacent Alto Guadalentin basin had dropped by some 250m over the last 50 years as water was drained for irrigation in the region.
Their calculations show that this created stresses on the fault that initially triggered the earthquake and defined its eventual magnitude.
Geoengineering dreams However, the area lies on a seismically active region, and the data suggest only that the water drainage sped up and eventually triggered a process that would have eventually happened anyway.
The BBC's Sarah Rainsford reported on the damage when the quake struck in 2011
Dr Gonzalez stressed the study was specific to the Lorca earthquake, telling the Reuters news agency that "we cannot set up a rule just by studying a single particular case".
"But the evidence that we have collected in this study could be necessary to expand research in other future events that occur near... dams, aquifers and melting glaciers, where you have tectonic faults close to these sources."
In an accompanying Nature Geoscience article, Jean-Philippe Avouac of the California Institute of Technology said: "It does not take much to trigger an earthquake - even strong rainfall can do the job".

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We should remain cautious of human-induced stress perturbations, in particular those related to carbon dioxide sequestration projects”
Jean-Philippe Avouac California Institute of Technology
"Numerous examples of seismicity triggered by the impoundment of reservoir lakes, hydrocarbon extraction, quarrying and deep well injections have been documented over the years."
Previous research has suggested that the fluid injection associated with the controversial practice of gas extraction by hydraulic fracturing or "fracking" was linked to specific earthquake events.
If science can pin down exactly how stresses from anthropogenic sources distribute and contribute to seismic events, Prof Avouac suggested, "we might dream of one day being able to tame natural faults with geoengineering".
"For now, we should remain cautious of human-induced stress perturbations, in particular those related to carbon dioxide sequestration projects that might affect very large volumes of [the Earth's] crust."

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Science

Airbus designer reveals plans for 3D printed planes by 2050

An Airbus designer is drawing up plans to create a plane from a 3D printer the size of an aircraft hanger by 2050.
Airbus employee Bastian Schafer envisions an 80-metre-long aircraft with a curved body made from transparent material, so passengers feel as though they're flying among the clouds, reports Forbes. Airbus proposed the concept of a 2050 self-cleaning aircraft with inbuilt neural networks, antioxidant enriched air and body heat harvesting facilities in 2011, but how such an aircraft would be built was not explained.
It turns out Schafer has been working on the concept for the past two years, pooling together a team of ten Airbus industrial designers with the ominous promise, "we have an opportunity to do something different".
Despite the cost of building such an obscenely large 3D printer and the feats in technology that need to be mastered before it is even a possibility, the argument is that the resulting lightweight aircraft (65 percent lighter than a normal one, according to parent company the European Aeronautic Defence and Space Company) will be far cheaper to operate. As rocketing fuel prices show no sign of slowing, the idea is appealing.
The innovation arm of Eads opened a £2.6 million Centre for Additive Layer Manufacturing (CALM) back in 2011 with the University of Exeter to explore opportunities for 3D printing in industry, and is already looking to pioneer 3D-printed plane parts. After making a few changes to ensure its model is regulation-ready, Airbus plans to have 3D printed components in the cabins of its A380s by the end of 2012. Its Eurofighter Typhoon military jet already has some internal 3D printed components.
These are mere baby steps towards the production of a plane constructed entirely of 3D printed parts. But it's not just the sheer size that will be an obstacle for Airbus (D-Shape, the biggest 3D printer currently in operation, has only ever made structures of a few metres in height). A type of transparent aluminum sturdy enough to make up the aircraft's body currently only exists in the imagination of the designers and technicians, as do the biopolymers proposed for some of its internal components. Schafer and his team are not too troubled by this, believing that multi-material 3D printers -- such as the one built by Objet -- can be used to generate the new materials. Objet currently offers consumers a range of 107 different materials that can be used with its printer -- this gives engineers the tools to experiment with bonding different materials to create prototypes.
"It's not theoretically impossible," said David Benjamin, a New York architect working with Airbus. "You can design new products that are not all solid and aluminum, but a composite material. You're designing new substances.
"You can dial in the different elasticity of an object, the color properties, or a continuous piece of material that is different properties over the piece. Certain parts of an airplane need to be strong and flexible [and 3D printers can create objects] strong just where they needed to be strong, or light where they needed to be light."
This may be some way off, however, and in the meantime, Schafer is happy to focus on the baby steps. He hopes consumers will be kicking back in 3D printed cabin seats by by 2013.

RO-----BO-MINER

Chile mine rescue


No joke: New tech turns air into petrol


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LONDON: A small British firm claimed to have developed a revolutionary new technology that can produce petrol using just air and electricity.
A company in the north of England has developed the 'air capture' technology to create synthetic petrol which experts have hailed as a potential "game-changer" in the battle against climate change and a saviour for the world's energy crisis.
The technology, presented to a London engineering conference this week, works by removing carbon dioxide from the atmosphere, The Telegraph reported. The 'petrol from air' technology involves taking sodium hydroxide and mixing it with carbon dioxide before 'electrolysing' the sodium carbonate that it produces to form pure carbon dioxide.
Hydrogen is then produced by electrolysing water vapour captured with a dehumidifier.
The company, Air Fuel Syndication, uses the carbon dioxide and hydrogen to produce methanol which in turn is passed through a gasoline fuel reactor, creating petrol.
Company officials claimed to have produced five litres of petrol in less than three months from a small refinery in Stockton-on-Tees, Teesside. The fuel produced can be used in any regular petrol tank and, if renewable energy is used to provide the electricity it could become "completely carbon neutral".
The company hopes to build a large plant, which could produce more than a tonne of petrol every day, within two years and a refinery size operation within the next 15 years.
Institution of Mechanical Engineers officials said that while the technology is "too good to be true but it is true", and said that it could prove to be a "game-changer" in the battle against climate change. Stephen Tetlow, the IMechE chief executive, hailed the breakthrough as "truly groundbreaking".
"It has the potential to become a great British success story, which opens up a crucial opportunity to reduce carbon emissions," he was quoted as saying by the paper.

Planet with four suns discovered by volunteers

Gas giant The new planet - a gas giant - is about six times the size of Earth

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Astronomers have found a planet whose skies are illuminated by four different suns - the first known of its type.
The distant world orbits one pair of stars which have a second stellar pair revolving around them.
The discovery was made by volunteers using the Planethunters.org website along with a team from UK and US institutes; follow-up observations were made with the Keck Observatory.
A report on the Arxiv server has been submitted to the Astrophysical Journal.

Start Quote

Computerised attempts to find things [in the data] missed this system entirely. That tells you there are probably more of these that are slipping through our fingers”
Dr Chris Lintott Oxford University
The planet, located just under 5,000 light-years away, has been named PH1 after the Planet Hunters site.
It is thought to be a "gas giant" slightly larger than Neptune - more than six times the radius of the Earth.
"You don't have to go back too far before you would have got really good odds against one of these systems existing," Dr Chris Lintott, from the University of Oxford, told BBC News.
"All four stars pulling on it creates a very complicated environment. Yet there it sits in an apparently stable orbit.
"That's really confusing, which is one of the things which makes this discovery so fun. It's absolutely not what we would have expected."
Binary stars - systems with pairs of stars - are not uncommon. But only a handful of known exoplanets (planets that circle other stars) have been found to orbit such binaries. And none of these binary systems are known to have another pair of stars circling them.
Keck Observatory Follow-up observations were made with the Keck facility on Mauna Kea
Asked how this planet remained in a stable orbit whilst being pulled on by the gravity of four stars, Dr Lintott said: "There are six other well-established planets around double stars, and they're all pretty close to those stars.
"So I think what this is telling us is planets can form in the inner parts of protoplanetary discs (the torus of dense gas that gives rise to planetary systems).
"The planets are forming close in and are able to cling to a stable orbit there. That probably has implications for how planets form elsewhere."

Kepler Space Telescope

Infographic (BBC)
  • Stares fixedly at a patch corresponding to 1/400th of the sky
  • Looks at more than 155,000 stars
  • Has so far found 2,321 candidate planets
  • Among them are 207 Earth-sized planets, 10 of which are in the "habitable zone" where liquid water can exist
PH1 was discovered by two US volunteers using the Planethunters.org website: Kian Jek of San Francisco and Robert Gagliano from Cottonwood, Arizona.
They spotted faint dips in light caused by the planet passing in front of its parent stars. The team of professional astronomers then confirmed the discovery using the Keck telescopes on Mauna Kea, Hawaii.
Founded in 2010, Planethunters.org aims to harness human pattern recognition to identify transits in publicly available data gathered by Nasa's Kepler Space Telescope.
Kepler was launched in March 2009 to search for Earth-like planets orbiting other stars.
Visitors to the Planet Hunters website have access to randomly selected data from one of Kepler's target stars.
Volunteers are asked to draw boxes to mark the locations of visible transits - when a planet passes in front of its parent star.
Dr Lintott points out: "Computerised attempts to find things [in the data] missed this system entirely. That tells you there are probably more of these that are slipping through our fingers. We've just stuck a load of new data up on Planethunters.org to help people find the next one."
Searching for such systems, he said, was "a complicated test to hand a computer", adding: "We're using human pattern recognition, which can disentangle that reasonably well to see the important stuff."
Since December 2010, more than 170,000 members of the public have participated in the project.
Paul.Rincon-INTERNET@bbc.co.uk

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Indian researchers develop nanosystem to kill cancer cells

Last Updated: Tuesday, October 16, 2012,11:37
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Indian researchers develop nanosystem to kill cancer cells
Mumbai: Work by a team of Indian researchers, who have developed a novel multi-component magnetic nanosystem that could image and kill cancer cells, has been highlighted in the latest issue of internationally acclaimed `Nature India` magazine.

The magazine is an international journal, with original, groundbreaking research spanning all scientific disciplines.

The design of nanosystem is bridged on graphene - a carbon allotrope, which could specifically target cancer cells, and deliver cargo of anti-cancer drugs and imaging agent.


"The challenge was to design a multicomponent nanosystem and simultaneously which would be biocompatible for cancer cells," says team leader Dr Jayant Khandare, who works with Piramal Healthcare Ltd. India.

The magazine has noted this manuscript as a ‘Research Highlight’ indicating the importance of this research designed by team of scientists from Piramal Healthcare Ltd.

This multicomponent nanosystem acts as a stronger cellular probe in imaging cancer cells, which is a powerful diagnostic tool. It can also be directed to target cancer cells and cancer tumour using external magnetic field, Khandare told PTI.

Besides researchers from Piramal Healthcare Ltd, the team comprises researchers from the Center for Structural and Functional Materials and Chemical Engineering Department, University of Louisiana at Lafayette, USA.

Love hormone' can help people beat alcohol addiction: study


 

A whiff of "love hormone" oxytocin may help people beat alcoholism, a new study has claimed.
Researchers from the University of North Carolina gave 11 alcohol-dependent volunteers two daily doses of an oxytocin nasal spray or a placebo, during the first three days of a detox programme, New Scientist reported.
The volunteers also received lorazepam - a detox drug - when their withdrawal symptoms reached a specific level.
"The oxytocin group had fewer alcohol cravings and milder withdrawal symptoms than the placebo group, and used just one-fifth of the lorazepam, four oxytocin volunteers didn't need any lorazepam at all," researcher Cort Pedersen said.
Lorazepam reduces anxiety and seizures during alcohol withdrawal, but it is highly addictive and users can experience insomnia and cravings when they come off the drug.
Although it is unclear how oxytocin - known for its role in social bonding - helps to aid withdrawal, it has no known side effects.
Pedersen hopes that alcoholics who take the hormone will therefore be less likely to experience the unpleasant symptoms that can lead to relapse.

interesting news-All 40 Of Sheikh’s Wives Get Their Period At The Same Time--studies suggested pheromones were responsible and that “menstrual synchrony


Sunday, October 14, 2012

All 40 Of Sheikh’s Wives Get Their Period At The Same Time--studies suggested pheromones were responsible and that “menstrual synchrony

Published On: Wed, Oct 3rd, 2012

All 40 Of Sheikh’s Wives Get Their Period At The Same Time

UNITED ARAB EMIRATES, DUBAI (The Global Edition) — All of Sheikh Mohammed bin Rashid Al Zayed Khalifa’s forty wives got their period at the exact same time, various Arab media are reporting. In what is being described as one of the most unfortunate events in recent UAE history, the PMS calendars of the Sheik’s wives became synchronized and created a terrible headache for everyone involved.
His Highness Sheikh Mohammed bin Rashid Al Zayed Khalifa, one of the richest men in the United Arab Emirates, first heard about the disaster from his eunuch, sources within the palace report.
In the meantime, the troubled man managed to answer a few quick questions from media representatives.
“Back when I only had two wives I could maybe handle a couple of mood swinging, bloated, depressed, angry and resentful chocolate-eating monsters at a time, but with just one more than that you’re as good as dead. I was convinced that this would never happen with all forty of them at the same time – I mean, what are the odds?” the grief-stricken ruler asked.
Palace representatives said that the harem would be put under quarantine for the next several days in order to avert a greater catastrophe, and that the Sheikh would do the same thing any other man would do in similar circumstances, “hide somewhere until it all passes.”
One of the Sheikh’s wives spoke to reporters about the mood inside the palace. “How is it even possible to cycle through every human emotion in one day? It’s so exhausting. And we get no support from our husband. None of us even give a damn if he comes back unless he brings us mass quantities of chocolate covered peanut butter balls,” Adara al-Sadah, wife number 28, was quoted as saying.
The Arab billionaire stated in the end that “having a harem can easily transform from being every man’s sweetest dream to every man’s worst nightmare.”
================================================


Do Women's Periods Really Sync Up?

Does "menstrual synchrony" exist, or is it just an urban legend?

Do Women's Periods Really Sync Up?
Any woman can relate, and any man within eyeshot has probably witnessed the following scenario: A woman suffering from mind-numbing cramps, hobbling over to the closest female coworker’s desk for pharmaceutical relief, and bonding over their synced cycles. If women spend enough time around female friends or co-workers, they’re bound to get on the same schedule…right? Greatist examines the science behind the sync.
Sync Up or Sex Up—The Need to Know
In 1971, a study speculated that regular contact with other women could affect female’s menstrual cycles. Researchers found social interaction was key to matched cycles, and close friends and women who were in contact for a substantial portion of every day (say, hanging out or working together) were more likely to sync up than women who merely lived in proximity to each other (e.g., on the same floor of a dorm). Follow-up studies suggested pheromones were responsible and that “menstrual synchrony” (the technical term for syncing) might be just the tip of the iceberg: It’s possible periods and ovulation could be socially regulated throughout a woman’s lifespan, from puberty to pregnancy and everywhere in between.
But while many researchers uphold the syncing theory, boy has there been a backlash. The pro-syncing crowd has been criticized for poor research methods, and the existence of natural synchrony hasn’t been confirmed in non-human primate studies.
In fact, synced cycles might not make sense evolutionarily. Syncing up in a hunter-gatherer tribe, for example, would mean that for a week or so, no woman would be able to get pregnant—not ideal when you’re responsible for procreating the human race. Instead of having matched cycles, women might unknowingly sync up phases of “sexual receptivity” and the lack thereof—meaning one woman is ready to get pregnant while another is just starting to menstruate, giving fertile women a more diverse choice of mates. (Of course, these are all very biological arguments, operating on the presumption that every woman’s goal in life is to get pregnant.)
Menstrual Mystery—The Debate
Unfortunately, there isn’t a definitive answer to the science of syncing, says Frederick Naftolin, Professor of Obstetrics and Gynecology and Director of Reproductive Biology Research at NYU. Synchronization is possible—in non-human animals, anyway. Manually matching up cycles (typically with the hormone progesterone) is key to many agricultural areas that rely on artificial insemination of cows, goats, and buffalos, as synchrony allows for simultaneous impregnation of a herd. But evidence for naturally-occurring human synchrony hasn’t been confirmed via adequately controlled, randomized trials.
Still, some researchers strongly maintain menstrual synchrony is real. Anecdotal evidence certainly seems to support the idea of syncing, says Martha Thomas, Associate Residency Program Director in the OB/GYN department at York Hospital/Wellspan Health. And it’s hard to say how factors like stress, sexual partners, and birth control play into the syncing game—if synchrony does exist, it’s possible these factors override it, making matched cycles appear less common than they might actually be.
But this is mostly speculation, stresses Thomas. Most contemporary research holds that it’s unlikely women will actually sync up month after month after month, especially because the length of individuals’ cycles can vary so dramatically. What seems most likely is that women don’t actually synchronize, but rather have the occasional synced period when their cycles’ lengths randomly overlap.
Surprised? Us too. But we’ll still share the Midol, whether or not we’re suffering too.
Thanks to Dr. Frederick Naftolin and Dr. L. Martha Ann Thomas for their help with this article.
Do your experiences contradict the science on this one? Let us know in comments below, or get in touch with the author on Twitter @LauraNewc.

 

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