They were only forbidden to partake of the Tree of Knowledge of Good and Evil. Some of the best information we have on the Tree of Life comes from I Nephi 11. Nephi is trying to obtain the interpretation of the dream his father had.
Factors that increase the risk of prostate cancer include: older age, a family history of the disease, and race. About 99% of cases occur in those over the age of 50. Having a first-degree relative with the disease increases the risk two to threefold.
Prostate cancer could be a sexually transmitted disease caused by an infection passed on during intercourse, scientists have said. Researchers at the University of California discovered a sexually transmitted infection called trichomoniasis helps the growth of cancer cells in human prostate cells, when grown in a laboratory.