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Health & Medicine

Intentional weight loss in old age not detrimental, study finds

Among obese group, those who shed pounds as part of diet study were less likely to die during follow-up years.

Math

Hiding patients in plain sight

A new technique could help make medical records available to researchers without compromising privacy.

Health & Medicine

Mapping the fruit fly brain

A new digital atlas could reveal how 100,000 neurons work together.

Physics

Colliding dust grains charge each other up

Physicists propose a way that cloud particles can electrify themselves.