You are touching on a subject that is not pubicized that much. I find
that any scientific research in space medicine that shows detrimental
effects of spaceflight are not talked about too much.

Matthew Ota

Brian Gaff wrote:
After reading some recent reports mentioning ex astronauts now on ground
duties, I wondered if there was some kind of exposure limit for those who
have done long duration flights, at least in the US.

I assume some record of radiation exposure for each is kept??

Brian