From WebMD:
“What we have found is that the effects of cannabis use on males and their reproductive health are not completely null, in that there’s something about cannabis use that affects the genetic profile in sperm,” said senior study author Scott Kollins. He is a professor in psychiatry and behavioral sciences at Duke.
“In the absence of a larger, definitive study, the best advice would be to assume these changes are going to be there,” [Dr. Susan] Murphy said.
