How strong your hands are in your 50s and 60s mostly depends on how old you are, whether you’re male or female, how much fat you carry, and how much muscle you have in your arms and legs — not whether your parents lived to 90.

People whose parents lived to 90 or older don’t have stronger hand grips than their spouses in their 60s and 70s, even though they live longer — so strong hands aren’t the reason they live longer.

Some people inherit strong hands from their parents, but it’s not consistent — and there’s no proof that the genes that help people live to 90 also make their hands stronger.

If you're an older adult, having weaker hand grip compared to your weight might be a little linked to a higher chance of dying from any cause, but it doesn't add much info beyond things like blood pressure or smoking.

People with weaker handgrip strength relative to their body weight tend to have worse metabolic syndrome scores.

Adults with the smallest handgrip strength and largest waist size had over 4 times higher risk of metabolic syndrome issues in women and over 8 times in men compared to those with strongest grip and smallest waist.