| http://www.w3.org/ns/prov#value | - to avoid wearing tight-fitting jeans and underwear (see above); very hot baths, which may hasten the death of sperm; environmental pollution from cigarette smoke, heavy metals, such as lead, mercury, and arsenic, pesticides, solvents, toxic chemicals, aflatoxin (a fungus found on peanuts and grains), and synthetic estrogens in poultry and dairy feed, which have all been shown to interfere with sp
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