Limp or firm, your handshake conveys subliminal social cues. Now, research reveals it also transmits chemical signals that could explain why the greeting evolved in the first place.
3 hours ago
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Amyloid—an abnormal protein whose accumulation in the brain is a hallmark of Alzheimer's disease—starts accumulating inside neurons of people as young as 20, a much younger age than scientists ever imagined, ...
Mar 02, 2015
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