Dr. Brent Hanson

There are a lot.

So concentration is one, the number of sperm per milliliter, the volume.

There are some that you just look at and it's like, yeah, double head, we're out.

That's not normal.

Double tail, same thing.

It's like if there's two of anything, we're done.

That's not a normal one.

Yeah, and so the take-homes from this were really that the longer you go without ejaculating, the larger that sample will be.

Yeah, so what we found is that the longer the abstinence period, the more these kind of DNA errors, so to speak,

I think if you're going beyond five days, certainly beyond 10 days, you're not doing yourself any favors.

You will just be increasing the number of probably non-viable, non-modal, abnormally shaped sperm with high rates of DNA fragmentation because those will continue to accumulate and they don't get flushed.