Calories. We count them and cut them. But do we really know what they are and what on earth they do to us?
According to Websters, a calorie is a unit of energy. It is the amount of energy, or heat, it takes to raise the temperature of 1 gram of water 1 degree Celsius (1.8 degrees Fahrenheit). One calorie is equal to 4.184 joules, a common unit of energy used in the physical sciences. When we are talking in terms of food though, a calorie contains 4,184 joules. The same rules apply when we are talking about exercise. Specific exercises burn x amount of calories. [Read more…]