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.
In some cases, changes to prostate cells can cause prostate cancer. Most often, prostate cancer starts in glandular cells of the prostate. These cells make a part of the seminal fluid. This type of cancer is called adenocarcinoma of the prostate.