An on-demand, non-hormonal male contraceptive pill may be a real possibility say scientists who have found a cell pathway, or switch, that stops sperm from being able to swim.

Tests in mice suggest it keeps sperm stunned for at least a few hours - long enough to stop them reaching the egg.

Many more tests are planned and needed, moving to rabbits before people.

https://www.bbc.com/news/health-64635446

 

My sperm don't swim anymore. Just float around the pool on an air mattress

Wonder what unintended side effects will occur? Eg apparently female pill can be inactivated quite easily, just by missing a dose or being obese etc.