Dr. Christopher Bell, MD

The key is to take it slow and gradually increase! A lot of people tend to overreach and wind up getting injured. A popular rule of thumb is to increase your weekly mileage about 10% per week, and most training plans follow this. It's also important to take an "easy" week every 3 or 4 weeks to allow

Plantar fasciitis can be a lengthy and frustrating injury to deal with. There are different theories on why we get it and what we can do to treat it. Some believe it is because of weakened foot muscles from wearing too-supportive shoes all the time, though this has not been proven.

Most of the time,

Crossfit is a great fitness trend along the same lines as P90x, but more in a group setting. It is a very intense, short duration exercise.

Recent research has shown that short-duration, high intensity exercise provides the same aerobic benefits as longer duration, lower intensity workouts. So you

P90x is a great program; we have a lot of family members, friends, and patients who have had success with it. However it is fairly intense exercise and if you are not used to it, you can suffer from pretty severe muscle soreness and potential injury in the initial stages. It may be beneficial to do

There's some controversy to this. If the iron is so low that you are anemic, then it can absolutely cause fatigue, especially with exercise. The prevailing mainstream thought is that without anemia, low iron should have no effect. However, there are some in the sports medicine world who believe that

TRX is a great, functional home gym apparatus that works with your own bodyweight. It is kind of like an all-in-one gym. All you have to do is attach it to a beam or in a door, and you can do many exercises with it to improve strength and cardiovascular conditioning. There are numerous different

I will assume that by "shoulder calcification" the questioner is asking about rotator cuff calcific tendonopathy, or rather a calcium deposit within the rotator cuff tendon. This can be a very painful condition of the shoulder that can come on fairly quickly, sometimes over the course of a few days.

This can be a complicated issue because it depends on your sport, the duration of symptoms of your concussion, and your personal concussion history. It is best to see a physician who is well trained in sports-related concussion to answer this question on an individual basis.

However, assuming this is your first concussion and

The answer to this question is actually very interesting. When people are involved in high intensity exercise over at least several minutes, they require a LOT of blood flow to the working muscles. So the blood vessels in our muscles, especially the legs, dilate to accommodate all this increased blood.

There have been no published research studies that show any benefit from taking antioxidant supplements. There is no proof that taking certain supplements prevents any diseases. There are a ton of products out there that claim benefit, but none have been proven. There is a theoretical benefit, since each