Can behavior affect our DNA

No that was my question because our thinking does affect the chemical makeup in our spinal fluids. Semen does not cross the brain blood barrier until it is reabsorbed.

I hadn’t thought about posting on this until several hours after I did the reading and now I am struggling to phrase my question to google the same way so I can find the article. I didn’t think sites were required in MHO, I know they are preferred. .