Most people know testosterone as the male sex hormone. It helps fuel your sex drive, contributes to the growth of body hair, and assists in the development of male sex organs during puberty. It has countless other purposes too - such as aiding muscle growth - but there are so many myths about testosterone it’s become hard to sort the fact from the fiction.  We’re...

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Researchers believe that physical activity is healthy. It doesn’t seem to be associated with lifespan, but it does improve healthspan – or the number of years your body is free from disease.  But what makes it healthy? That’s a fascinating question.  When you measure athletes during exercise, their bio-signs don’t seem to indicate health at all. Instead, it looks like the physical activity is actually...

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