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How Sleep Loss Affects Women More Than Men

New research shows that when women lose sleep they're at higher risk for diabetes, heart disease, and depression.
WebMD Magazine - Feature

Sleep deprivation hit Laurel hard for years before she realized what was wrong. In the middle of the night, she would wake up worrying about work, finances, and scheduling. Unable to fall back to sleep, she got out of bed and worked on her computer in the kitchen for hours while her husband and three children snoozed soundly upstairs.

Typically, she was logging only five or six hours of sleep a night. The 37-year-old from Marshfield, Mass., says the sleepless nights began after the birth of her youngest child and got worse after she was laid off during her maternity leave and started her own business in late 2007.

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"My health and emotional well-being definitely suffered," she says, recalling that she often complained of stress, frequent colds, and joint pain (she was eventually diagnosed with arthritis). Her doctor told her too many sleepless nights were aggravating her symptoms and ordered her to stop working during the wee hours.

Women and Sleep Loss

Recent research shows that women like Laurel who report sleepless nights have a greater risk for health problems than men. Researchers at Duke University Medical Center, led by Edward Suarez, PhD, an associate professor in the department of psychiatry and behavioral sciences, found that women who reported unhealthy sleep are at an elevated risk for heart disease, type 2 diabetes, and depression.

"The differences are so remarkable," Suarez says. "Most studies have said that poor sleep is bad for overall health, but few studies have looked at these gender differences." Why are sleep-deprived women at higher risk? Hormones are the likely culprits, but it isn't clear how they work to protect men or leave women more vulnerable.

Laurel started getting more shut-eye by moving her bedtime up, taking walks during the day, and trying a sleep medication for a month to get her natural sleep cycle back on track. Her symptoms subsided as her sleep habits improved. "I'm in a much better state of mind now," she says.

How Sleep Loss Affects Your Health

A 2007 survey conducted by the National Sleep Foundation found that two-thirds of the women polled say they have had sleep problems a couple nights a week in the past month. That's not good -- unhealthy sleep patterns affect women's health and might even lead to a shorter life span than men's, says Suarez. Here are some of the downsides: 

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