Also probably that older people don't stress their heart as much because they don't do sports or screw around as much.
So young men might take their heart to 90% max on the soccer field whereas older people only to 60% max on the treadmill. While they both have damaged hearts, older people may be less likely to get to the point where the heart seizes up and they fall over dead.
Doesn't mean there's not other bad consequences like blood pressure, lower lifespan from damaged older hearts.
Also probably that older people don't stress their heart as much because they don't do sports or screw around as much.
So young men might take their heart to 90% max on the soccer field whereas older people only to 60% max on the treadmill. While they both have damaged hearts, older people may be less likely to get to the point where the heart seizes up and they fall over dead.
Doesn't mean there's not other bad consequences like blood pressure, lower lifespan from damaged older hearts.