Circadian rhythms: Do men and women tolerate staying up overnight differently?

gettyimages
Credit: Getty Images

Recently, researchers have found evidence that biological differences between the sexes can affect the circadian rhythm of both humans and mice.

There are many indications that women and men have internal clocks that are set a little differently.

Follow the latest news and policy debates on agricultural biotech and biomedicine? Subscribe to our newsletter.

Women are more likely to be morning people and seem to tolerate nocturnal disturbances better than men, according to some research. But why?

There are few studies on the differences between women’s and men’s ‘orchestras’, but animal studies suggest that sex hormones may affect the ‘conductor’, namely the brain.

Related article:  How long is sex supposed to last? 'Normal' might be shorter than you think it should be

A study shows that the female sex hormone oestrogen is sensitive to light. When the researchers removed oestrogen in mice, they were less reactive to light.

This means that mice with oestrogen were more likely to be woken by the light, even when they should have been asleep.

“This can be a good thing if you have to travel through several time zones or if you have to perform at night,” Marti says. “But not when you have to go to bed and sleep the morning after your night shift.”

The two American researchers who wrote the Science review wondered if women cope with shift work better than men because they are programmed by nature to take care of children, who can wake quite a lot at night.

But this is currently only a hypothesis.

Read the original post

Outbreak
Outbreak Daily Digest
Biotech Facts & Fallacies
Talking Biotech
Genetics Unzipped
ft covidresponseus feature

Video: Viewpoint: The US wrote the global playbook on the coronavirus and then ignored it

A year ago, the United States was regarded as the country best prepared for a pandemic. Our government had spent ...
mag insects image superjumbo v

Disaster interrupted: Which farming system better preserves insect populations: Organic or conventional?

A three-year run of fragmentary Armageddon-like studies had primed the journalism pumps and settled the media framing about the future ...
dead bee desolate city

Are we facing an ‘Insect Apocalypse’ caused by ‘intensive, industrial’ farming and agricultural chemicals? The media say yes; Science says ‘no’

The media call it the “Insect Apocalypse”. In the past three years, the phrase has become an accepted truth of ...
globalmethanebudget globalcarbonproject cropped x

Infographic: Cows cause climate change? Agriculture scientist says ‘belching bovines’ get too much blame

A recent interview by Caroline Stocks, a UK journalist who writes about food, agriculture and the environment, of air quality ...
organic hillside sweet corn x

Organic v conventional using GMOs: Which is the more sustainable farming?

Many consumers spend more for organic food to avoid genetically modified products in part because they believe that “industrial agriculture” ...
benjamin franklin x

Are most GMO safety studies funded by industry?

The assertion that biotech companies do the research and the government just signs off on it is false ...
gmo corn field x

Do GMO Bt (insect-resistant) crops pose a threat to human health or the environment?

Bt is a bacterium found organically in the soil. It is extremely effective in repelling or killing target insects but ...
favicon

Environmental Working Group: EWG challenges safety of GMOs, food pesticide residues

Known by some as the "Environmental Worrying Group," EWG lobbies for tighter GMO legislation and famously puts out annual "dirty dozen" list of fruits and ...
m hansen

Michael Hansen: Architect of Consumers Union ongoing anti-GMO campaign

Michael K. Hansen (born 1956) is thought by critics to be the prime mover behind the ongoing campaign against agricultural biotechnology at Consumer Reports. He is an ...
News on human & agricultural genetics and biotechnology delivered to your inbox.
Optional. Mail on special occasions.
Send this to a friend