Please avoid a harmful tone when replying here, there's no need for that :) As for the 70 year-olds still running marathons, I've heard of plenty more 25 year-

Please avoid a harmful tone when replying here, there's no need for that :) As for the 70 year-olds still running marathons, I've heard of plenty more 25 year-olds dying of heart attacks. Anecdotes are not enough here it seems.