Our body is made with the help of bone infrastructure. The gaps between them are filled with the help of muscles. There are also 3 parts of our body. Such as the brain (it is the house of intelligence) , the chest (it contains the heart , 2 lungs and 1 gastric cavity which includes the stomach , intestines , liver , 2 kidneys , 1 spleen. These organs have no definite measurements but are commonly seen. The brain of an adult weighs 1.5 kg , heart 300 g , liver 1.5 to 2 kg , two kidneys 300 g. Each cell of the body contains a large amount of fluid (intra-cellular water), including muscle , heart , kidney , brain , intestines , bones and bone marrow. Known as extra cellular water, 55% of body weight depends on water. Cells contain small amounts of protein , carbohydrates , fats and minerals. The body stores fat. Glyco Jane stays. It is prepared from carbohydrates. Lean body mass is what is left after removing body weight from stored fat. Normally in a healthy body , 15% of the total body weight is stored fat. It fills the gap between the bones and the muscles. Different parts of fat are stored in the cell. When obese people start accumulating more fat in their body, fat builds up in their buttocks , lower abdomen , neck and chin.