Cut down on total fats, saturated fats, cholesterol and salt in your diet. Reduce weight if overweight. Muscles and joints The most common risk in exercising is injury to the muscles and joints. This usually happens from exercising too hard or for too long - particularly if a person has been inactive for some time. If precautions are not taken during hot, humid days, heat exhaustion or heat stroke can occur - although they are fairly rare.
Heat stroke is the more serious of the two.
The last two symptoms of heat stroke are important to know. If the body temperature becomes dangerously high, it can be a serious problem. Both heat exhaustion and heat stroke can be avoided if you drink enough liquids to replace those lost during exercise. And be sure to take the other important precautions listed on page 7 in the section on avoiding injuries. In some cases, people have died while exercising.