HUNGRY FOR SLEEP
If you find yourself craving high-calorie foods, lack of sleep may be the culprit. Doctors used magnetic resonance imaging to measure the brain activity of 12 well-fed but sleepdeprived people as they looked at images of highand low-calorie foods. After a 700-calorie dinner and then an evening of no sleep, the people reacted to the high-calorie images with high levels of activity in the brain area that controls appetite sensation. When the members viewed the same images after a meal and seven hours’ sleep, they found all the images far less appetizing, reacting with less brain activity – demonstrating how poor sleep habits may affect weight.