Cholesterol does far more than clog arteries. It builds cell membranes, fuels hormone production, and keeps your brain and nervous system working properly.
Learn how to calculate your daily protein needs based on your body weight, activity level, and goals, plus tips on spreading intake throughout the day.
Spotting between periods can stem from birth control, hormonal changes, fibroids, or infections. Here's what's likely causing it and when to see a doctor.