Each month iVillage poses a different question to our Dream Team of experts. Here's what we asked this month: It seems like one side of my body is stronger than the other. Is that possible?

It's completely possible, and in your case, it appears to be true. I've seen this a lot, especially in athletes whose sport causes them to use one arm more than the other (basketball, for example). Doesn't much matter why — it can happen for many reasons. If there is a significant difference in size or strength, you can just train the weaker side a bit harder (more weight) to even them up. If the difference is minor, it's probably nothing to worry about. Just chalk it up to individual differences, like having one blue eye and one brown one.

Muscle strength is a lot like your checkbook and your diet: All three should, in a perfect world, be balanced. This means that the muscles around a joint should have the proper strength ratio, and your left and right sides should have about the same degree of strength.

Unfortunately, few people have an ideal strength balance. Runners, joggers and walkers, for example, frequently have powerful quadriceps muscles (front of thigh) but relatively weak, tight hamstrings (back of thigh). When they switch to an activity that uses the hamstrings, they may lack the ideal strength ratio, which can set them up for injury. Similarly, people who throw, catch and kick with the muscles on their right side often neglect those on their left.