Obesity is related with modern life style which prompts us either to eat excessive food or to eat calorie rich junk food. Such dietary habits provide us excessive energy which is stored in the body in the form of fat. The accumulation of fat takes place beneath the skin primarily in stomach, limbs and chest.

Kalahari is the desert in the south of African continent. This is the land of many prehistoric tribes. These tribes have established glib relationship with the nature. The existence of these tribes in extreme climate of desert is the proof of this thing.