Examines the opinions of several experts on the safety of weight training during pregnancy, noting that no definitive research on weight training alone has been done. Experts agree that low-intensity weight training probably poses no harm for mother or fetus; exercise programs should be individualized. (SM)

Exercise can help patients maintain lean body mass during weight loss. Although exercise is not extremely useful in shedding excess pounds, it helps keep off weight lost through calorie restriction. This article discusses the specifics of exercise prescription, types of exercise, motivation to exercise, and special problems such as diabetes. (SM)

Examines the effect of caffeine consumption on fit, healthful lifestyles, discussing its effects on the heart and respiration and noting its psychological effects on some athletes. Moderate caffeine use will not cause problems for most people, but anyone susceptible to its effects (e.g., with arrhythmias) may want to avoid caffeine. (SM)