biological clock

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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... More »

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,... More »

How to Change a Woman's Biological Clock

An actual ticking clock can speed things up: study

(Newser) - Ladies, you know your biological clock—the one that "ticks" away as you start feeling like it might be time to reproduce? Well, it turns out the sound of an actual ticking clock can speed up your reproductive timing, making you want to have babies earlier, according to a... More »

Unnatural Sleep Schedules Can Make You Fat

People who disrupt biological clocks have higher BMIs

(Newser) - Your alarm clock could be making you flabby, suggests new research. People who force themselves to maintain schedules that are different from their natural sleep routines are more likely to put on the pounds, reports LiveScience . Researchers collected data from more than 65,000 Europeans and found that for every... More »

Older Women Postponing Kids by Freezing Eggs

(Newser) - Women in their 30s are freezing their eggs to give themselves more time to start a family, according to a new study. The relatively new technology allows women to plan for IVF treatment in future—so they can take away the pressure of a ticking biological clock while they concentrate... More »

To Beat Jet Lag, Skip Airline Food

Fasting can help reset your internal clock, study says

(Newser) - Jet lag can be beaten—if passengers avoid airline food, new research suggests. The timing of meals has a profound effect on the body's internal rhythms, and passengers who go without for a while—keeping the body's "food-related clock" in check—can dodge much of the exhausting effects of... More »

Test Counts 'Good Eggs' to Track Fertility

Offers $350 check-up of biological clock; some docs skeptical

(Newser) - Women wondering how much time is left on their biological clocks have a new option, the Chicago Tribune reports. A new test called Plan Ahead, on the market for $350, claims to measure how many high-quality eggs a woman has remaining and thus some indication of childbearing potential. But some... More »

Mariah Carey: No Babies for Me

Having a child would make diva feel 'violated'

(Newser) - Mariah Carey may be nearing her 40th birthday but the singer isn't worried about her biological clock, reports the New York Daily News. That's because she has no plans to have kids—in fact, she'd "feel violated' by having a baby. "I know that's a weird thing to... More »

55M Monarchs Can't Be Wrong

Internal clock of 1-ounce butterfly sheds light on human sense of time

(Newser) - The 1-ounce monarch butterfly may have a thing or two to teach us: Each year, some 55 million monarchs make a 4,000-mile multigenerational journey from Canada to Mexico, returning to the same forest, often the same tree, without relying on GPS. How? The insects rely on a unique internal... More »

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