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Safer Sex

Safety

Sarcoma

schizophrenia.

Seasonal Affective Disorder

Seniors

Sex Education

Sexual Health

Sexual Identity

Shaken Baby Syndrome

SIDA

Skin Cancer

Skullbase Surgery

Sleep

Discovery could lead to ways to mitigate effects of jet lag and shift work

Smoking

Although the cortex grows thinner with normal aging, the study found that smoking appears to accelerate the thinning process.