Researchers who tried to figure out the actual effects of low testosterone on male health came to several conclusions.

Low testosterone production can reduce strength, muscle size and lean mass. If the testosterone isn’t being converted to estrogen, men may see an increase in body fat. And a deficiency of either can spark a decline in sexual function.

The research, involving hundreds of volunteers and published online September 11 in the New England Journal of Medicine, comes at a time when testosterone supplements are being widely advertised to men in the U.S., for example, in commercials urging them to be… Continue reading →

• Superbugs, aka drug-resistant bacterial infections, can cause infections that are hard to treat with antibiotics, the drugs that usually kill bacteria.

  In fact, according to the Centers for Disease Control and Prevention (CDC), all bacterial infections in the world are slowly becoming resistant to antibiotic treatments. That's because disease-causing bacteria are living organisms that constantly evolve, enabling them to adapt to new environments. Antibiotic resistance develops over time — it can start from even a very small number of microbes within a population that have genes that allow them to continue to grow, despite the use of drugs that… Continue reading →