"We are each an experiment of one" see http://www.georgesheehan.com/welcome/bio.html

once 185lb, now 135lb+/-, age 63, height 5' 8", very little body fat

biking, walking some jogging and now swimming because of triathlons

I just eat but don't over indulge-too often , O'Doul's NA beer because the carbs are good for me and don't care for alcohol that much, drank wine but not much at all now, just had ice cream last night-first time in months-just don't want it anymore and the same with deserts i.e.-pies

I eat and drink for fueling, not for the enjoyment. Does that mean I am non-social? Maybe, but it doesn't bother me.