Tonic Against Tiredness...
A swig of flat cola could pep up your performance. Sports nutritionists from Birmingham University have found that two cups of cola can improve endurance during long-distance events. For the study, cyclists were given three different drinks—glucose, glucose mixed with caffeine, or plain water –... 
The Downside of Pushups...
If you have weak shoulders, even the most basic exercises could disable you. Researchers found that 14 percent of shoulder injuries occurred while people were doing push ups and pull ups. “This is most likely the result of poor shoulder stability,” says Peter Ketch, CSCS. To protect your shoulders,...