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Transcript 
Astrophysics & Human Biology
of Sun Tanning
PHY 290: Astronomy
PHY 280: Physical Science
BIO150: Human Biology
Astrophysics & Human Biology
of Sun Tanning
PHY 290: Astronomy
PHY 280: Physical Science
BIO150: Human Biology
Great!!!
I’ll learn to get
a better sun tan?
Astrophysics & Human Biology
of Sun Tanning
Sun’s radiation & tanning
Ultraviolet
Too much = sun burn
I had a sun burn
last summer.
That was not fun
Astrophysics & Human Biology
of Sun Tanning
Long-term harmful effects of UV
• Skin Cancer
– Basal-cell Carcinoma
– Squamous-cell Carcinoma
– Malignant Melanoma
– Deadliest of the skin cancers
(20% die within 5 yrs)
Uncle Lou worked out
in the sun. He had
several moles removed.
Astrophysics & Human Biology
of Sun Tanning
Long-term harmful effects of UV
• Skin Cancer
• Premature Aging
– yellow, sagging,
and wrinkled skin
She reminds me of
Aunt Helen. She sun
bathed every day.
Astrophysics & Human Biology
of Sun Tanning
Long-term harmful effects of UV
• Skin Cancer
• Premature Aging
• Eye Damage
– Browning of the lens
– Cataracts & partial blindness
Both Uncle Lou & Aunt
Helen had cataract
surgery last year.
Astrophysics & Human Biology
of Sun Tanning
Long-term harmful effects of UV
•
•
•
•
Skin Cancer
Premature Aging
Eye Damage
Crippled Immune System
Aunt Helen is sick
all of the time.
Astrophysics & Human Biology
of Sun Tanning
There is NO such
thing as a safe tan!!!
Maybe getting a tan
is not such a good
idea!!
Astrophysics & Human Biology
of Sun Tanning
There is NO such
thing as a safe tan!!!
Astrophysics & Human Biology
of Sun Tanning
PHY 290: Astronomy
PHY 280: Physical Science
BIO150: Human Biology
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