You do not question an author who appears on the title page as "T.V.N. Persaud, M.D., Ph.D., D.Sc., F.R.C.Path. (Lond.), F.F.Path. (R.C.P.I.), F.A.C.O.G.

I've read plenty of amazing science pieces where the writers don't hang out in labs. I just have fun doing it. And I get rewarded for it; I get gushy, especially when kids tell me they expected to be bored by my books, but weren't.

You do not question an author who appears on the title page as "T.V.N. Persaud, M.D., Ph.D., D.Sc., F.R.C.Path. (Lond.), F.F.Path. (R.C.P.I.), F.A.C.O.G.

Sharing a room with a cadaver is only mildly different from being in a room alone. They are the same sort of company as people across from you on subways or in airport lounges, there but not there. Your eyes keep going back to them, for lack of anything more interesting to look at, and then you feel bad for staring.

If you could really guarantee that the money would be spent on something more worthwhile, I'd say, absolutely, scrap the space program, but it never works that way.

The point is that no matter what you choose to do with your body when you die, it won't, ultimately, be very appealing. If you are inclined to donate yourself to science, you should not let images of dissection or dismemberment put you off. They are no more or less gruesome, in my opinion, than ordinary decay or the sewing shut of your jaws via your nostrils for a funeral viewing.

Yet if you don't understand the physiology of a biological system or process-like female sexual arousal-you can't possibly come up with a way to fix it when things go wrong. No one would have come up with a treatment for diabetes if physiologists hadn't figured out how metabolism, blood sugar, and insulin work.