The #1 motility reducer in men today is proximity of a cell phone to the male gonads.
No joke. Keep the cellphone as far, far away at *all* times. It will take approx 64 days for *any* changes to produce results in motility and count (including diet), since spermatogenesis takes about that long.
Every man on this forum/board is half the man his grandfather was: the sperm counts of men in the US and 20 industrialized countries have been dropping at a rate of about 1% per year since the early 40's.
There is a ridiculously high (and never mentioned) correlation between low testosterone levels in athletes and a cell phone carried in the pocket. Totally serious.
Even moderate exposure of 30 minutes a day, 5 days a week, drastically lowers testosterone (yes, there are studies). Get an armband for your cell phone for when you're not using it, and don't care how it looks, or don't carry it and leave it in the car and check it often.
Instead of doing an immoral test, send *blood* samples to Spectracell and see what they tell you. I'm not joking. It seems expensive (about 400 bucks), but if you have a child I don't think you'll regret it. Find out if you have a nutrient or micronutrient deficiency with Spectracell and eliminate that issue, the body often provides resources to reproductive resources *last* to keep an organism alive, if you're lacking something, your gonads are usually first to suffer.
Another thing I'm not joking about and I have recommended strenuously before is this:
http://www.greenpasture.org/public/Products/ButterCodLiverBlend/index.cfm(Take 2 immediately upon waking up and 2 before going to bed, again, changes will take at least 64 days)
It seems expensive (like the Spectracell test), but I often find the things I do are *not* expensive once one takes into account the cost of medical insurance, copays, deductables, etc.
Lastly, to the male forum members, check out the CBC docuмentary The Disappearing Male