Body & Brain

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Ebola virus particles (green)

Ebola virus particles (green) bud from an infected cell (blue). The virus has infected more people in Liberia.

Aging

FOR THE AGES  Peoples’ chronological ages may not match the state of their bodies. New research suggest some people age faster than others. Some factors that contribute to aging may be in the blood.

PAPER TOSS  When sheets of paper were scrunched, variations in surface area (larger on the left) led to balls with different levels of crumpled folding. Surface area is one part of a new equation that may help describe how brains fold.

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