If those things are bad for sperm count I'd expect them to be bad for the rest of the body as well. Sperm count is probably just a convenient metric which reveals the detrimental impact.
In my (layman’s) review of related literature, this seems to be the case. I’ve gone through phases of looking into for eg. what might optimise lean mass, testosterone, longevity, decrease cancer risk, sperm count etc. It’s all basically the same stuff. Unsurprising, really.
Can you share your study/findings? It'll help me and others who are searching for the same.
I’m afraid I don’t have comprehensive notes, but it’s not very complicated or new (perhaps disappointingly). Maintain a lowish bodyfat (10-15% for males, I think 20-30% for females), consume sufficient nutrients (including non-famous ones like k2) but lower-than-you’d-think calories, get enough but maybe not too much sleep, minimise stress, avoid endocrine disrupters (though if memory serves evidence here is thin), cold and hot treatments both have potential benefits (e.g suana), exercise is good (both aerobic and resistance). Fasting and/or low carb can improve the efficacy of radiotherapy in cancer treatment. Things like that.