In recent years, makers of prescription testosterone treatments like AndroGel began throwing around the term “Low T” in TV ads, blaming low levels of the hormone for various problems — sex drive, flagging energy, moodiness — that have long been associated with simply growing older. But the FDA is now acknowledging that these drugs pose “a possible increased risk of heart attack and stroke” and are warning against their use for the treatment of anything other than very specific medical conditions. [More]