I agree. After a certain age (don't know which one) the skin doesn't snap back with weight loss. Skin gets flabby with wt loss, but most of the areas where there's flab there's also muscle. I read somewhere that after age 50, people lose a certain % of muscle tissue regularly, so if the sort of exercise one is doing isn't working to develop some muscle tone in thighs & upper arms & (yes) the abs, then it's gonna be droop city by the time you're my age (70). Doesn't mean there won't still be some flabbiness, just less of it than there'd be without persistent exercise of the sort that develops muscle tone. ~~ mo