Tanning and Radiation
Post on 22-Feb-2016
39 Views
Preview:
DESCRIPTION
Transcript
TANNING AND RADIATION
ELECTROMAGNETIC RADIATION
UV
WHAT REACHES US
SKIN PROTECTION FACTOR (SPF) Maximum time before burn (w/ sunscreen) = minutes
to burn (w/o sunscreen) x SPF If it takes 12 minutes to burn your skin, SPF 15 will protect
you for 180 min (180 min = 12 min x 15)
UVA AND UVB A stands for Aging
Penetrates to the dermis
Causes premature aging, wrinkles and cancer
Consistent year-round
B stands for Burning Mainly affects
epidermis Causes burns,
cataracts, immune system damage and cancer
Strongest during summer
Produces vitamin D3
MELANIN Tanning is your body
protecting itself from damage
Basically a skin cell “scab”
Not burning isn’t better
IARC CARCINOGEN LEVELS Group A: Carcinogenic to humans Group B: Likely to be carcinogenic to humans Group C: Suggestive evidence of carcinogenic potential Group D: Inadequate information to assess carcinogenic
potential Group E: Not likely to be carcinogenic to humans Some Group A’s:
Asbestos Arsenic Formaldehyde Hepatitis B and C Tobacco Ultraviolet-emitting tanning devices
TANNING BEDS Used by 30 million Americans per year Used by 21% of HS girls Increased risk of melanoma (the DEADLIEST
form of skin cancer) for those under 35 by 75%
Risk is the same for ALL tanning devices Risk increases with every use The high-pressure sunlamps used in tanning
salons emit doses of UVA as much as 12 times that of the sun
MELANOMA
TANNING BED MYTHS “Tanning provides me with essential vitamin
D” “If I don’t burn, I’m not doing any harm” “I only get a base tan to prevent burning!” “UVA is safer than UVB” “I have darker skin, so I don’t have to worry
about UV rays”
top related