The biggest organ.

The human body has multiple parts and systems, and all these parts (at least the "external anatomy") are covered by the skin, the biggest organ in our body.

The human skin is divided into three main parts, and these parts are, "epidermis" is the first layer and the barrier between organism and external environment, thanks to it we avoid the growth of microorganisms and UV radiation, The second layer are “Dermis”, The dermis is the layer of skin beneath the epidermis that consists of connective tissue and cushions the body from stress and strain. The dermis provides tensile strength and elasticity to the skin, also provide nutrients to epidermis. The last layer are “hypodermis” or “subcutaneous tissue”, this layer is considered part of the skin by some but not by all, subcutaneous tissue help to conserve corporal temperature.

There are multiple diseases that affect the skin, most of them weaken the skin and others produce wounds, and not only diseases weaken the skin, bad diet and accidents can do it too.

For a healthy skin you need a good diet, food what provides vitamins, orange and wiki for c vitamin, carrot for A vitamin, olive oil and nuts for E vitamin and meal or legumes for proteins, you need avoid oils (in excess) and fats.