35 Amazing Facts About Our Bodies Largest Organ: Our Skin
1. The human body’s largest organ is the skin.
2. Our skin serves a range of purposes. It acts as a protective layer for our internal organs, bones and muscles. It also protects our bodies from external diseases and gives us the sensory ability to detect heat and cold.
3. There are three layers to the human skin; 1) the Epidermis, 2) The Dermis and 3) Subcutis.
4. The epidermis is the outermost layer of skin and is thickest on the palms of our hands and soles of our feet at 1.5mm thick.
5. The subcutis, also known as the hypodermis is the deepest layer of your skin. The subcutis also contains blood vessels, hair follicle roots and nerves.
6. If skin is severely damaged then it may try to heal by forming scar tissue – it often appears discoloured and lacks sweat glands and hair.
7. The colour of human skin produces depends on the amount of pigment melanin that the body produces. Small amounts of melanin produce light skin while large amounts produce darker skin,
8. Areas of skin that experience repeated friction or pressure can form tough, thick skin known as a callus. Common examples of calluses can be seen on the hands of tennis players and the fingertips of guitarists.
9. A large amount of dust you find at home is actually dead skin.
10. All mammals have some hair on their skin even if it isn’t easy for us to see.
11. The average skin when stretched out is 2square metres.
12. Skin accounts for around 15% of your body weight
13. There are two types of skin ‘hairy’ and ‘glabrous’
14. Every inch of your skin has an exact stretchiness and strength for its location. The skin of your knuckles is very different from the skin on your belly.
15. The thinnest skin is found on your eyelids
16. Body hair will grow for 2-6 years.
17. You lose around 20-100 hairs a day.
18. Hair is made up of a protein called keratin
19. Every 28 days your skin renews itself.
20. Lipids are natural fats that keep the outer layer moist and healthy. Detergents and alcohol can destroy lipids.
21. Every minute your skin sheds over 30,000 dead cells.
22. Sweat is odourless; it’s the bacteria that make the body odour.
23. Your skin has it’s own bacteria microbiome of over 1,000 species and around 1,000,000,000,000 individual bacteria.
24. The glands that produce wax in your ears are specialised sweat glands.
25. On average about 14 species of fungi live between your toes.
26. Large tentacle-like cells called melanocytes produce and distribute melanin.
27. Everyone has the same number of melanocytes. Skin colour is actually is due to their activity, not quantity
28. 1 in 110,000 people have albinism – a lack of melanocytes
29. it takes up to 6 months for babies to develop their permanent skin tone.
30. Acne is caused by an overproduction of cells that line the sweat gland
31. 4/5 teenagers get some form of acne
32. 1/100 adult men suffer from acne
33. 1/20 adult women suffer from acne
34. The staphylococcal bacteria cause boils. It enters through a tiny cut and travels down the hair follicle.
35. Different vitamins heal different parts of our skin. Vitamin E naturally protects against the signs of ageing and damage caused by the sun. Vitamin C assists in the regeneration of vitamin E. If you want to reduce sunspots make sure you get a healthy dose of vitamin D.