Five Simple Exercises to Prevent Age-Related Muscle Loss

The bad news is that we begin to lose muscle fibers at around 50 years old at about 2% per year. The good news is that we can minimize that loss by strength training. I own two books by the author of this linked article and in it he reviews five simple exercises to maintain muscle mass in nearly every muscle of the body.
Five Simple Exercises to Prevent Age-Related Muscle Loss