Originally Posted by Whiteroom
Originally Posted by bounceswoosh
So, when I turn 49 and 12 months, I plan to mark my age as 49 forever ... 50 seems really arbitrary. Can anyone give some color on that rule?
They studied bone density and found that there was a drop in bone density as folks aged. It's not very complicated, I understand why people like to think "I'm different"... but you are not, you are kidding yourself. Let's face, very few people in today's society are more active than people 40 years ago, we, as a society are much more sedentary and our diets have gotten worse. The average American would have looked obese to folks 30 years ago... our bones have NOT gotten stronger.
Science says that bone density drops with age. Science does not say that suddenly, on our birthday, we lose X% bone density. Weight lifting is also shown to slow bone density loss a great deal.
Using number A as a substitute for number B is a peeve of mine. BMI is not the same as body fat; age is not the same as bone density. There are plenty of people, especially women, who have poor bone density younger than 50. If I'm charging as hard at 50 as I plan to be at 49, I don't see why I'd want my ski to suddenly come off in a situation where it wouldn't have before.
Yes, yes, age is being used as a heuristic for bone density. Wait, where have I heard about heuristics being dangerous? Let me think ... I know it was around here somewhere ...
Heuristics are an accommodation used when the actual data is harder to gather. But they're not as accurate as the actual data.