It's not easy to adjust to a new time zone or work schedule. Our body has a natural sleep/wake cycle and disruptions to it can lead to more than just feeling tired or exhausted.
Washington University professors Paul Gray and Erik Herzog are studying the biology behind our daily internal clock, or circadian rhythm. Sometimes referred to as the body or biological clock, Herzog defined it as "the entity within the body that synchronizes with an environmental cycle." This is not to be confused with the biological clock some refer to when thinking of a woman's desire to conceive.
Updated at 5:30 p.m. to adjust y-axis units on graph and to add second map.
It's not a big change, but it's at least in the right direction.
According to a new report released this week by the U.S. Centers for Disease Control and Prevention, the prevalence of obesity among low-income preschoolers (ages 2-4) declined by at least one percentage point over the period from 2008 to 20011 in 18 states and the U.S. Virgin Islands.
When Sally O'Neill's doctor told her she had an early form of cancer in one of her breasts, she didn't agonize about what she wanted to.
The 42-year-old mother of two young girls wanted a double mastectomy.
"I decided at that moment that I wanted them both taken off," says O'Neill, who lives in a suburb of Boston. "There wasn't a real lot of thought process to it. I always thought, 'If this happens to me, this is what I'm going to do.' Because I'm not taking any chances. I want the best possible outcome. I don't want to do a wait-and-see."
Residents of Saint Louis, Franklin County and Jefferson County staged a “Miss and Mr. Toxic Water Pollution” pageant on the banks of the Mississippi River on Tuesday to draw attention to the issue of water contamination from Missouri's coal-fired power plants.
Credit Sarah Skiold-Hanlin, St. Louis Public Radio