Materials, products and services - the Green Guide Online provides details of the life cycle environmental impacts of construction materials and components, and the Green Book is a free online database of products and services.
Spermicides are used globally for birth control, with or without condoms. As the only means of birth control, spermicides are rarely effective. However, in conjunction with condoms, spermicides are somewhat effective in birth control.
Smoking, Alcohol and Drug Abuse. Obesity may decrease sperm production / function. Zinc & Folate associated with healthy sperm production. Antioxidants And Vitamin C & E may help protect sperm from Free-Radicals Damage.