Rest Harder Than You Work Out
If you overtrain -- meaning you don't allow your body to recuperate adequately between training sessions -- your circulating testosterone levels can plunge by as much as 40 percent, according to a study at the University of North Carolina. The symptoms of overtraining are hard to miss: irritability, insomnia, muscle shrinkage, joining the Reform Party. To avoid overtraining, make sure you sleep a full eight hours at night, and never stress the same muscles with weight-lifting movements two days in a row.
5. Don't forget to have fun.
For the online discounter FatWallet, based in Rockton, Ill., fun is a regular part of the schedule. Its 55 employees are invited to play in a monthly Game Day, an in-house competition with activities ranging from Trivial Pursuit to Wii bowling matches. The company also offers quarterly "fun" rewards when staffers achieve certain goals, such as hockey games, casino nights, or playdays at at amusement parks. Team-building events have included a city scavenger hunt in Chicago and a rooftop Cubs game.