circadian rhythms

19 Stories

This Bedtime May Be Best for Your Heart
This Bedtime May Be
Best for Your Heart

This Bedtime May Be Best for Your Heart

Study finds lowest risk of cardiovascular disease in those who tuck in between 10 and 11pm

(Newser) - Heading to bed at one specific hour could significantly reduce your risk of heart disease, as suggested by a new study. It finds participants who went to bed between 10pm and 10:59pm were at a lower risk of developing cardiovascular disease than those who put their head on the...

Why Students Doze in Class: It's Called Social Jet Lag

And academic performance suffers, study says

(Newser) - Feel out of sync with 9-to-5 life? You're not alone: A massive study of college students shows that 60% take classes at hours conflicting with their schedules, causing them to suffer academically, reports. Published in Scientific Reports , the study of nearly 15,000 students at UC Berkeley...

When You Eat May Be More Important Than What You Eat

Idea of TRF, or time-restricted feeding, is catching on

(Newser) - It's beginning to look like a concept called TRF—or, time-restricted feeding—is going to be around for a while in the arena of diet and nutrition. The Washington Post has a feature on it, while the Wall Street Journal and others have covered it previously. The idea is...

There's a Reason Afternoon Heart Surgery Is Best

There's a Reason
Afternoon Heart
Surgery Is Best

There's a Reason Afternoon Heart Surgery Is Best

Heart genes aren't in top form in the morning: scientists

(Newser) - Should you ever need heart surgery, it might be worth pressing for an afternoon appointment. New research in the Lancet finds patients who undergo morning heart surgery are twice as likely to suffer heart issues and other complications as patients who have surgery in the afternoon, per the BBC . It'...

3 Americans Win Nobel Prize for Medicine

Jeffrey Hall, Michael Rosbash, Michael Young studied circadian rhythms

(Newser) - The first Nobel winners of 2017 have been announced, and three Americans have collected the prize for medicine. Jeffrey C. Hall of the University of Maine, Michael Rosbash of Brandeis University, and Michael W. Young of Rockefeller University were awarded the Nobel Prize in Physiology or Medicine for shedding light...

Snack at Night and Risk ... Sunburn?
Yet Another
Reason Not
to Snack
at Night

Yet Another Reason Not to Snack at Night

When we eat impacts certain skin genes

(Newser) - Eating when we should be sleeping could disrupt our skin's ability to protect itself from the sun's harmful rays, researchers now say. Specifically, per a ScienceDaily news release, noshing down late at night can mess with the skin's biological clock, which in turn can affect the effectiveness...

Camping Trip Can Get Body's Sleep Cycle Back on Track

Even if you can only get away for a weekend

(Newser) - A weekend camping trip may be the solution to everything from a lack of productivity at work to diabetes, according to a study published Thursday in Current Biology . Melatonin levels in the body regulate the body's sleep schedule, increasing when it's time for bed and falling when it'...

Our Bodies Fight Off Illness Far Better in the Mornings

Some viruses and pathogens even manipulate our molecular 'clockwork' to up their chance of thriving

(Newser) - Studies have suggested that the time of day one receives a flu shot can actually affect how effective it is, and now University of Cambridge researchers are reporting in the Proceedings of the National Academy of Sciences that our immune systems are better at fighting off viruses and pathogens at...

Nonstop Artificial Light Might Even Affect Your Bones

Nonstop Artificial Light
Might Even Affect
Your Bones
study says

Nonstop Artificial Light Might Even Affect Your Bones

In a new study, mice became more frail, but only temporarily

(Newser) - Roughly one-third of the globe can no longer see the Milky Way thanks to artificial light at night. The impact of light pollution has long been obvious, but scientists are now exploring the role of constant exposure to light on health, and a study in the journal Current Biology adds...

Flying East Is a Pain for Your Brain

 Flying East Is a 
 Pain for Your Brain 

Flying East Is a Pain for Your Brain

Biological clock prefers a longer day achieved by flying west: study

(Newser) - A flight from Paris to New York is easier on the brain than one from New York to Paris, according to a new study that finds jet lag is based not only on distance traveled, but also the direction of travel. In the journal Chaos , researchers from the University of...

Morning Person or Night Owl? Your Genes May Decide

Biology may be influencing if you stay up all night or wake up with the sun

(Newser) - You may be naturally disposed toward being a morning person or a night owl—and scientists are now saying that may have a true biological basis that's hard to fight, the Guardian reports. Per a study published Tuesday in Nature Communications , researchers under the direction of 23andMe lead scientist...

How Being a 'Lark' or 'Owl' Affects Performance

Study: Time one wakes, plays has a dramatic impact

(Newser) - If you're an early riser, your peak performance is earlier in the day, typically around lunchtime. If you're a night owl who prefers to sleep in, your prime time is closer to 8pm. One's internal body clock, which influences everything from alertness to risk of heart attack,...

Tiny Sea Louse Has Extra Body Clock

One for night and day, and the other for the tides

(Newser) - The speckled sea louse may be only 5mm long, but it's got something you don't: an extra body clock. Like humans and other creatures, the sea louse has one body clock that follows the circadian rhythms of night and day. But scientists have found the first molecular proof...

Body Clock Drug Could Cure Depression, Jet Lag, Obesity

Circadian manipulator resets rhythms in mice

(Newser) - Scientists have developed a drug that can manipulate the body clocks of mice—opening up the possibilities of treating such wide-ranging disorders as jet lag, manic depression, and obesity. The drug, developed by a team of British and American scientists, can adjust the circadian rhythms of mice by altering a...

High Blood Pressure Linked to Body Clock

Circadian clock possible key to better treatment of hypertension

(Newser) - Add high blood pressure to the long list of heightened risk factors for night shift workers, long-distance flight crews, and others with disturbances in the body's 24-hour clock. In findings with implications for treatment of hypertension, Japanese researchers working on mice have shown that the circadian clock directly controls a...

Nighttime Snacks Worse Than We Thought

Mouse study shows weight gain more than doubles on opposite schedule

(Newser) - Eating when you should be sleeping—the proverbial midnight snack, say, or the meals of night-shift workers—could put you at higher risk of obesity, Time reports. A new study fed two groups of mice the same high-fat diet on opposite schedules; the group that ate during “normal” waking...

Out-of-Whack Body Clocks Keep Teens Sleepy: Study

Later school start times improve sleep, decrease car accidents

(Newser) - Sleepy high-school students slumped over their desks just can’t help it, CNN reports. Most school start times play havoc with teens’ circadian rhythms: Teens naturally go to bed later than adults, and need more sleep. A new study finds pushing the high-school start time from 7:30am to 8:...

Genetic Test Reveals Your Body Clock

Simple mouth swab can separate the larks from the owls

(Newser) - A simple mouth swab can tell scientists who's naturally meant to get up early and could forever free people who like a morning snooze from accusations of laziness, the Daily Telegraph reports. The newly developed test reveals the activity of the genes that regulate a person's body clock and identifies...

From Night Owl to Early Bird?
From Night Owl to Early Bird?

From Night Owl to Early Bird?

Altering caffeine, light, can help mold sleep patterns

(Newser) - For those wide-eyed deep into the night, rising and shining with the early birds might seem like an elusive dream that comes to a jarring end each morning. But for this 5% to 30% of the population, understanding circadian rhythms can benefit their tired eyes more than chugging coffee. The...

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