Ray Peat Audio Archive

jf-190427-stress-health — Ray Peat Clip

This curated audio highlight features Ray Peat speaking in the interview jf-190427-stress-health. The excerpt begins at 00:18:41.080 and runs for 58 seconds.

The rats had playground equipment like swings and slides and balls and things. More recently it has been found that the enriched environment rats not only had bigger more intelligent brains but their whole bodies were producing more progesterone and more recently still they were found to have lower levels of estrogen. Back in the 70s Marion Diamond found that if you gave animals a supplement of progesterone their brains were bigger and when the mother was pregnant if you gave her estrogen their brains were shrunken because it stopped the growth by causing stress.