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.
1 Prostate cancer is one of the leading causes of cancer death among men of all races and Hispanic origin populations. 2  In the US around 209,292 men are diagnosed with prostate cancer per year.  Around 27,970 men die from prostate cancer in the US each year.