Physical Activity Lowers Heart Disease Risk New research suggests that middle-aged women who move around more in their daily life have lower levels of intra-abdominal fat, a risk factor for heart disease. To learn more, visit this month's fitness section.

Poor Bond With Siblings May Boost Depression Risk Men who don't get along with a sibling might be at higher risk for depression, new research shows. Find out more in this month's family and home section.

Puzzles May Be a Real Brain-Booster A daily crossword puzzle or similar highly focused task might help sharpen your all-round powers of concentration, new research suggests. Learn more in this month's mind and body section.

Omega-3 Fatty Acids May Lower Blood Pressure A diet rich in omega-3 fatty acids -- found in certain fish, nuts, seeds and vegetable oils -- may help lower blood pressure. Learn more in this month's nutrition section.