Does exercise really keep us healthy?

Exercise has long been touted as the panacea for everything that ails you. For better health, simply walk for 20 or 30 minutes a day, boosters say — and you don’t even have to do it all at once. Count a few minutes here and a few there, and just add them up. Or wear a pedometer and keep track of your steps. However you manage it, you will lose weight, get your blood pressure under control and reduce your risk of osteoporosis. Read more

The Pauses and Aging

Our body parts will not pause at the same time. For example, a cardiologist treats a patient with coronary artery disease because her heart has become older than the rest of her organs. When a doctor works on a hip or diagnoses osteoporosis these bones have become old. For a patient with these problems, his heart can be 50 years old, his bones 60 years old, yet his chronological, or real, age and the rest of the body is only 40 years old. Read more