PeerJ

Medical research

Study finds significant variation in anatomy of human guts

New research finds there is significant variation in the anatomy of the human digestive system, with pronounced differences possible between healthy individuals. The finding has implications for understanding the role that ...

Psychology & Psychiatry

Excessive sports training may have negative effects on mood state

To build fitness, athletes must apply stress to the body, and then through recovery, the body adapts and is able to accommodate greater stress in the next round of training. Controlling the adequate amounts of stress and ...

Psychology & Psychiatry

Screams of 'joy' sound like 'fear' when heard out of context

People are adept at discerning most of the different emotions that underlie screams, such as anger, frustration, pain, surprise or fear, finds a new study by psychologists at Emory University. Screams of happiness, however, ...

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