Hand strength doesn't seem to have anything to do with whether someone gets cancer — people with weak or strong grips had about the same risk.

People who can't squeeze as hard with their hands are more likely to die sooner or have heart problems, even if they don't have heart disease or cancer yet.

Even when you remove people who already had heart disease or cancer, weak grip still predicts higher risk of dying or having heart problems — so it’s not just because they’re already sick.

Even when doctors account for age, weight, and other illnesses, weak hand grip still predicts who is more likely to die — it adds unique information about health risk.

People with weak hand grip and weak bones are much more likely to die sooner than those with stronger hands, even after accounting for other health problems.

Even when doctors account for age, weight, and other illnesses, weak hand grip still predicts higher death risk in people with weak bones — meaning it adds unique information.