At rest, the body loses 2 litres, or 8 glasses, of water per day and is usually steady at a body temperature of 37 degrees Celsius. When exercising, your body's temperature can rise as much as three degrees. To compensate for this increase, your body sweats. Sweat helps cool body temperature and prevents you from overheating. However, if you fail to replace the water you lose, dehydration sets in.
Fluids are one of our most valuable fitness tools.
Our bodies do not provide reliable thirst signals. In fact, if you feel thirsty, you are probably already dehydrated. Adequate water intake will not only rehydrate your body this summer, but it will revitalize dull skin, assist the kidneys in ridding the body of waste materials and lubricate joints. More importantly, water quenches your thirst without additional calories, fat or cholesterol. There are many reasons why Canadians don't drink enough water, apart from the body's unreliable thirst signal.