Low testosterone linked to increased type 2 diabetes risk

For years it was thought that high testosterone levels may increase a man's chance of developing type 2 diabetes later in life. However, the findings of a new study indicate that this may not be the case.

The findings, which were published in the journal Heart, indicate that men with low testosterone levels were more likely to experience premature death from heart disease and other causes than men with normal levels of the hormone.

After tracking the medical records of 930 men with heart disease for a period of seven years, researchers found that one in five men with low testosterone died, compared to one in eight who had normal testosterone levels.

Researchers said that their findings show that low testosterone appears to be accompanied by obesity, high levels of blood fats and insulin resistance, all of which increase the risk of type 2 diabetes and heart disease. The group called for further studies to examine the connection between the hormone and metabolic risk.

"While the long term cardiovascular impact of testosterone supplements in those with low levels remains to be demonstrated, accumulating evidence suggests there is a sound basis for examining this," they wrote in their report.
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