• your skin is the largest organ of the body
• your skin measures about 1 mm thick when you’re born, and grows to about 2 mm thick by adulthood
• as we age, skin gradually thins and becomes more sensitive to sun damage.

Your skin has 3 main functions:

1. Protective – your skin’s main job is to insulate and protect the body against invasion by bacteria and other foreign things. Quick Fact: After a sunburn, the skin breaks down and can increase the risk of infection.
2. Sensory – the skin can sense 5 different kinds of stimulation: touch, pressure, heat, cold, and pain.
3. Regulatory – the skin helps to control body temperature by distributing heat through the skin and by preventing dehydration.

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