http://www.cnn.com/HEALTH/diet.fitness/travel.fitness CNN.com delivers up-to-the-minute news and information on the latest top stories, weather, entertainment, politics and more. en-us 2009 Cable News Network LP, LLLP. Tue, 29 Sep 2009 13:34:50 GMT http://cnn.com/2009/HEALTH/09/29/ideal.walking.workout/index.html http://cnn.com/2009/HEALTH/09/29/ideal.walking.workout/index.html Walking is a wonder exercise. Not only can it can help control weight, it also reduces the risk of developing diabetes, certain cancers, and heart disease. Walking bestows benefits to the brain too, by relieving stress and improving mood. Best of all, walking is free: You don't need fancy equipment or a gym membership to reap the benefits. Here's how to make every step count, no matter how often you hit the pavement. Tue, 29 Sep 2009 13:34:07 GMT http://cnn.com/2008/HEALTH/dailydose/12/03/hypothermia.frostbite/index.html http://cnn.com/2008/HEALTH/dailydose/12/03/hypothermia.frostbite/index.html Hypothermia develops when body temperature, usually at 98.6ºF, drops below 90ºF. Frostbite occurs when parts of our bodies -- usually fingers and toes -- freeze because the blood vessels have constricted and blood flow is reduced. According to the Red Cross, about 700 people in the United States die every year from hypothermia and frostbite. People can become lost in the wilderness, stranded in their cars or trapped at home without utilities. Wed, 03 Dec 2008 16:51:07 GMT http://cnn.com/2008/HEALTH/dailydose/12/02/altitude.sickness/index.html http://cnn.com/2008/HEALTH/dailydose/12/02/altitude.sickness/index.html Every year millions of people go to the mountains for backpacking, skiing, mountain climbing and other activities and are surprised to find that they don't feel well. It's because the higher you climb above sea level, the less oxygen there is in the air. This causes problems for people who normally live at lower altitudes because their bodies aren't used to working on so little oxygen. A study published in the New England Journal of Medicine in July 2007 found that even some airline passengers can fall victim to altitude sickness. Tue, 02 Dec 2008 21:05:32 GMT