Body & Brain

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Multiple sclerosis tends to develop later in patients who spent more time in the sun as adolescents, and who were not overweight at age 20, a new study finds.

dna ligase

Specialized proteins (blue and yellow) can repair damaged DNA. The 2015 Nobel Prize in chemistry was awarded to three researchers who determined how the cell works to protect genetic material in the face of environmental damages or DNA-copying errors.

William C. Campbell, Satoshi Ōmura and Youyou Tu

NEW NOBELS  William C. Campbell (left), Satoshi Ōmura (center) and Youyou Tu (right) received the Nobel Prize in medicine or physiology for identifying drugs that fight parasites. 

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