Health Alert: U.S. pregnancy rates lowest in 12 years

(CBS) - U.S. pregnancy rates are at the lowest level in 12 years.

The Centers for Disease Control says the biggest drop is among teens and women in their 20's.

The percentage of pregnancies among women in their 30's and 40's is actually on the rise.

(CBS) - Scientists at the University of Michigan found the sun can damage skin very quickly.

They shined a low level of UV rays  known as UVA1 on volunteers, similar to what we experience in daily life.

After just two exposures the  rays caused a break down of collagen, which makes skin firm and smooth.

Researchers say few sunscreen ingredients protect against UVA1, but most just block UVB rays which cause sunburns.


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