Excerpted from "A Year of Health Hints"
365 Practical Ways to Feel Better and Live Longer
Exercise can help ease muscular aches and pains and other discomforts women sometimes experience during their
pregnancies. Yoga, walking, swimming, and other forms of low-impact or stretching exercises are best.
Check with your doctor if you've never exercised, and follow these safety guidelines for exercising during pregnancy.
Wait 1 to 2 hours after eating to exercise.
Drink one or two 8-ounce glasses of water before you start to exercise.
Don't do exercises that involve jumping, twisting, or strenuous activity.
Keep your heart rate below 140 beats a minute.
Don't become overheated.
After the fourth month of pregnancy, avoid exercises in which you lie flat on your back.
If you always or nearly always feel tired for more than 2 hours after exercise, see your doctor.