Two types of tissue make up the human body, lean tissue which is the muscle, bone and organs that is metabolically active, and fat tissue, which is known as adipose tissue, and is inactive.

Do we always really see what we see? If we can determine the roughness of the surface by eye, then may be we can find out its color by touch? Sounds confusing, isn't it?

The human body is a machine. Unlike other machines, however, it has the ability to try to understand how it works.

We could life for several weeks without food but without water you could dehydrate within days. Imagine a 2% loss of the water surrounding your body cells could cause a 20% decrease in your energy levels.