General Health

Daily Dose: 11/8/2012

Predicting Heart Attacks: A new study from the American Heart Association links signs of aging to greater risks for heart attacks and heart disease. According to study authors, doctors should now check for visible signs of aging in every physical examination. Researchers examined about 11,000 people ages 40 and older enrolled in the Copenhagen Heart Study. Researchers identified 3,401 participants who developed heart disease and 1,708 who had a heart attack after a 35-year follow-up period. Those who had three to four signs of aging were 57 percent more likely to have a heart attack and 39 percent were at a greater risk for heart disease. The signs of aging include receding hairlines, baldness, earlobe creases or wrinkles, or yellow fatty deposits around the eyes. The researchers found that fatty deposits around the eyes were the strongest predictor of heart attack and heart disease. People in their 70s and those with multiple signs of aging are at the highest risk for heart problems.

Sleep On It: Researchers found that a lack of sleep was associated with lower GLP-1 hormone levels, which affects satiety in women, but not men. Not enough sleep was also linked to higher ghrelin hormone levels, which affect hunger stimulation in men, but not women. The study followed 27 men and women between the ages of 30 and 45. In two different sleep conditions they were only allowed four hours of sleep and in the second they got nine hours of sleep. Researchers discovered that not enough sleep could increase caloric intake for men and women, but affects each person differently. Lack of sleep gives men a bigger appetite, but makes women feel less full.