Taking medications by your (internal) clock.

• Position: Your Life - Brief Article

Aspirin in the morning? Asthma medications at night? Your internal body clock could set the optimal time to take medications, suggests the Mayo Clinic Women's Health-Source.

In a 24-hour period, body functions vary. Your heart rate and blood pressure are especially low during deep sleep. Peak blood pressure occurs 12 to 24 hours after this low point. Heart rates vary five to 15 beats a minute over a 24-hour period. There are many other normal variations, which doctors refer to as circadian...