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Tanning: an acquired darkening of the skin in response to ultraviolet radiation
o A tan is visible proof that your skin is being damaged
o Most Americans, including up to 80% of people under age 25, think they look better when they have a tan
o Changes in attitudes towards darkness of skin from 19th – 20th century
o Coco Chanel: tan=wealth, fashion
How does tanning affect the skin?
o Skin is the largest organ of the body
o Types of UV (ultraviolet radiation):
§ UVA- penetrates to lower layers (dermis)- causes tanning
§ UVB- burns upper layers (epidermis)- causing sunburns
§ UVC- absorbed by earth’s atmosphere before it reaches you
o What do this radiation actually do to the skin?
§ UVA- are considered to age the skin; research suggests it may play some role in skin cancer
§ UVB- more often linked to skin cancer
o Process of tanning
§ UV rays hit the skin and melanocytes are stimulated- brown pigment, Melanin is synthesized
§ Melanocytes respond by making more melanin to protect your skin
§ Melanin = an umbrella for skin’s cells; gives brown color
o Differences among people’s amount of melanin
§ North European background vs.
§ African
§ Differing levels of susceptibility to problems
o Dermatologist’s skin types
o Type 1-2:
§ Fair skin
§ Blonde or red hair
§ Always burn in the sun:
o Type 3-4:
§ Sometimes burns
§ Darker skin tones
§ Tans fairly easily
o Type 5-6:
§ Black skin
§ Usually does not sunburn
§ Have more natural protection against the sun- but should still take precautions
Long-Term effects of the sun:
o Melanin only protects to an extent
o Damage manifests as:
Ø Wrinkles
Ø Brown age spots
Ø Blotchiness
Ø Leathery, sagging skin that looks old!
Approximate Word count = 1158
Approximate Pages = 4.6
(250 words per page double spaced)
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