Prehistoric Swiss Army knife indicates early humans communicated

Archaeologists have found that a tool, dubbed the "stone Swiss Army knife" of prehistory, was made to look the same in enormous numbers across great distances and multiple biomes in southern Africa. This indicates early humans ...

Having good friendships may make for a healthier gut microbiome

Social connections are essential for good health and well-being in social animals, such as ourselves and other primates. There is also increasing evidence that the gut microbiome—through the so-called "gut-brain axis"—plays ...

Friends enjoy being reached out to more than we think

People consistently underestimate how much others in their social circle might appreciate an unexpected phone call, text or email just to say hello, and the more surprising the connection, the greater the appreciation, according ...

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