Mainstream medicine may finally be catching on to the fact that testosterone does more than increase the libido! It has been known for a long time that testosterone builds muscle tissue (it has made a big difference in the stability of my back), and even I know the heart is a muscle.....so it stands to reason that testosterone optimization would improve cardiac function. The most current evidence now is that a higher testosterone level does NOT increase the risk of prostate cancer (if you want a good book on that subject, go to Amazon.com and get a copy of Testosterone For Life). Dr. Timothy Johnson from ABC News discusses this subject on his Health Minute report, check out
http://www.wdio.com/article/stories/S2590833.shtml?cat=11803 on station WDIO.com.