Weighing about 4kg and covering an area of up to 2 square meters, the skin is the largest organ on the human body.
We know that every day, the body releases 500 million dead skin cells and about 1 liter of sweat.
Imagine a day your lips disappear. How can you eat to survive?
Skin is a very important part of the human body. You may not see that your skin is working, but it actually does a lot of important functions in protecting human life.
One thing special about the skin is that it doesn't leak blood or sweat despite the fact that we eliminate about 500 million cells in 24 hours a day.
British and American scientists have successfully created a piece of epidermis - the outermost layer of skin, from stem cells in the laboratory.