For a good time...

... go read this post of Joel Achenbach's. The whole thing is quite entertaining, although subject-wise, it does wander just a bit.

Just to give you a few tastes:

Our precious immune system becomes a potentially lethal agent in the aging heart. Our brains are awash in chemicals telling us to eat more fatty foods, but these chemicals never anticipated the existence of a middle-aged body. The brilliant trick of cell division increasingly turns into a life-threatening hazard. ...

The only sure way to prolong life, the only proven way, is caloric restriction. Food is death. Also most beverages. Also oxygen. That's about one part in five of the Earth's atmosphere, and it will rip your cells from limb to limb. Sunshine is another killer. And water: A universal solvent.

OK those snippets sounded depressing, not funny. I guess you'd have to trust me and read the whole thing. It's actually about gardening. And this is the light-hearted post of the day, if I ever get around to writing the one I've been planning since Friday.