When you’ve have a cold or the flu, how do you know when it's safe to continue a routine exercise program?

My husband is getting severe back spasms in his lower back, possibly as a result of twisting wrong while doing sit-ups. He is getting no relief from ibuprofen. Is there an over-the-counter alternative?

My doctor told me that adding an exercise regimen that kept my heart rate accelerated 30-40 minutes almost every day would be good for me.

Is exercise a good treatment for depression?

I have a heel spur – and I’m on medicine for the pain from my doctor. I want to start exercising again. I especially like yoga. Any suggestions?

What is the recommended exercise equipment choice for someone with a bulging disk at L4-L5: a recumbent bike, stair stepper or elliptical trainer?

I’ve been active in sports my entire life. I had debridement surgery on my right ankle one year ago. It’s still painful. Have there been any medical advances to either replace the cartilage (synthetic or real) or re-grow cartilage?

At 78 years old, I am in pretty good shape. A couple of years ago, an echocardiogram showed a small leak in my mitral valve. A year later, a follow-up test showed some leakage in my tricuspid valve.

Over the past 3 weeks, I’ve developed pain in my ankles, Achilles tendon, knee and elbows. The pain is minor to severe, and it feels like the pain moves from joint to joint. I haven’t changed my routine or had any injuries. So what could cause this?

I have a pretty active job where I’m on my feet all day, running back and forth? Does this count as exercise? Or over the years, does your body just get used to this level of activity – and you need to be even more active to lose weight?

I haven't exercised in months because of a foot injury. I'll be having surgery soon. But I'm gaining weight. Anything I can do in the meantime?