Maria Sharapova Tests Positive for Banned Substance U.S. Government Sending Blood Products to Puerto Rico

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Study tracked 1.5 million people from age 18 to 62 and found fitter teens had lower lifetime risk

Study finds fat levels a better indicator of early death than commonly used BMI measure

Sugar, salt and overall calorie intake likely to decline, researchers say

Study finds workers without it forgo or delay care for themselves, spouses and children

Scientists say they created tissue with blood vessels that survived for weeks in lab

Sugar, salt and overall calorie intake likely to decline, researchers say

Study finds workers without it forgo or delay care for themselves, spouses and children