The Secret to Good Health May Be a Walk in the Park

Dr. Hamdi said in an interview that 35 percent to 40 percent of health is determined by one’s physical environment, including public access to green spaces, outdoor recreation and community gardens. Accordingly, the trust is collaborating with hospitals and community health workers to foster investment in open spaces and create programs that counter physical and … Read more

What Are the Effects of Vitamin B12 Deficiency?

Q. What are the effects of vitamin B12 deficiency if left untreated? A. A deficiency of vitamin B12 can cause neurological and psychiatric problems that “can progress if left untreated, and can lead to irreversible damage,” said Dr. Donald Hensrud, director of the Mayo Clinic’s Healthy Living Program. Fortunately, it can be reversed fairly easily … Read more

Regular Exercise May Keep Your Body 30 Years ‘Younger’

The muscles of older men and women who have exercised for decades are indistinguishable in many ways from those of healthy 25-year-olds, according to an uplifting new study of a group of active septuagenarians. These men and women also had much higher aerobic capacities than most people their age, the study showed, making them biologically … Read more

Do High-Cholesterol Foods Raise Your Cholesterol?

Q. What is the evidence that dietary cholesterol or other fat influences serum cholesterol? A. Foods high in cholesterol, like eggs or cheese, can raise blood cholesterol levels, though the effect is relatively modest and varies from person to person. The best evidence available suggests that saturated fat, rather than dietary cholesterol per se, is … Read more

Are Calcium Supplements Safe?

Q. Are calcium supplements safe? A. The short answer is probably yes. Many people, especially women, take calcium supplements in the hope of building stronger bones, but whether calcium supplements prevent fractures remains uncertain. The United States Preventive Services Task Force advises postmenopausal women against taking 1,000 milligrams a day or less for preventing fractures … Read more

What Foods Should I Avoid to Prevent Kidney Stones?

Q. What foods should I avoid if I’m prone to kidney stones? A. Drink more fluids, consume less sodium and eat a diet that includes calcium-rich foods. The rest depends on the chemical composition of your stones. More than 90 percent of stones contain calcium, usually in the form of calcium oxalate, calcium phosphate or … Read more

Which Is Better, Rewards or Punishments? Neither

“I feel a sense of dread as bedtime rolls around. Here we go again.” A dad said this in our family therapy office one day, describing his son’s pre-bed antics. The child would go wild as bedtime approached, stubbornly ignoring his parents’ directions and melting down at the mention of pajamas. The parents felt frustrated … Read more