That's why I always recommend starting with a blog or website first. Create a content website on a very focused theme/niche. Build up traffic to that website through continuous, useful updates. Learn how to market the website, and as your following grows, then you'll have people to promote your social network to.
Human body. The human body is the entire structure of a human being. It is composed of many different types of cells that together create tissues and subsequently organ systems. They ensure homeostasis and the viability of the human body. It comprises a head, neck, trunk (which includes the thorax and abdomen), arms and hands, legs and feet.
This is where the concept of body composition comes in. Body composition is exactly what the name states: what our bodies are composed of. Now, it could be said that in a general sense we are all made up of the same parts. It is true that every body contains muscle, bone, organs, tissue, and fat.