Male Fertility
Andrew and urologists suggest that men get their sperm analyzed at least once every five years and consider freezing their sperm if they plan on having children in the future. They discuss the minimum concentration of sperm required for IVF and the importance of motile sperm.In this clip
From this podcast

Huberman Lab
How to Optimize Fertility in Males & Females | Huberman Lab Podcast
Related Questions
What is the sperm count needed for conception?
How much should a man be ejaculating to optimize fertility, as discussed in the episode How to Optimize Fertility in Males & Females | Huberman Lab Podcast and the clip Sperm Count Factors?
How much should a man be ejaculating for optimal fertility as discussed in the episode How to Optimize Fertility in Males & Females | Huberman Lab Podcast and the clip Sperm Count Factors?