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.
What causes carcinoma cancer? WebMD reports that ultraviolet rays from the sun or from a tanning bed are the primary cause of basal cell carcinoma. Tumors vary widely in appearance and include small shiny bumps, patches of red, slightly scaly skin and waxy, hard growths.