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Lucy: arm bones With dangling, powerful arms, Lucy was likely a good climber, and she may have spent some time in trees. Her upper arm bones are long and sturdy relative to those of modern humans.

From your shoulders to your fingers, your arms have many moving parts: joints, bones, muscles, nerves, tendons and ligaments. Mysterious arm pain that seemingly comes out of nowhere can arise if ...

Not only that but having more muscular arms reduces your risk of injury and can help improve your posture – helping to protect your bones and stabilise your joints. Most importantly, who doesn't ...