> Age related decline is biological and not everyone has identical DNA Agreed—my friend Chaz Ferrari is 70 and has no gray hairs. And swims miles every day. I

> Age related decline is biological and not everyone has identical DNA Agreed—my friend Chaz Ferrari is 70 and has no gray hairs. And swims miles every day. It's also easier to overlook one's aging when one is not competing with youth. I'm 58, and I pair-program at my company, and the intellectual elasticity of the twenty-year-olds continues to astound me: they can read through code & digest it much more quickly than I can, my years of experience notwithstanding. > Lack of energy is one of the signs of aging True! I remember when I was 49 and had to resign from the rugby team. "This is my last season," I told the coach. "I'm tired all the time from practice and games, and I can't do it anymore. It's too much." I was forced to acknowledge that at 49 I could no longer do what I could at 48. But that doesn't mean that life is over: I play old boy's rugby, and it's a blast.