The only restrictions that doctors place on physical activity usually involve prolonged running, but other activities, including skiing, waterskiing, and racquetball, are okay.
In cartoons a bulge in the bicep is the symbol of muscularity - and that someone has been eating their spinach. In real life though, such a bulge signals something...
There are tremendous benefits to this popular athletic program, but as with any fitness program, it comes with factors worth considering before jumping onboard. Here's what you need to know...