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What are the benefits and risks of testosterone therapy?

As more and more middle-aged men turn to testosterone therapy to increase their energy and sex drive, Siobhan O'Connor, health director of Time magazine, and Dr. Steven Kaplan look at the potential benefits and risks of the treatment.

As more and more middle-aged men turn to testosterone therapy to increase their energy and sex drive, Siobhan O'Connor, health director of Time magazine, and Dr. Steven Kaplan look at the potential benefits and risks of the treatment.