Diabetes drug appears to mitigate benefits of daily walks

A common diabetes drug could be sabotaging the health benefits that a patient might expect from a daily walk, a new study says.
Metformin appears to blunt improvements in blood pressure, fitness and blood sugar control that normally come from regular exercise, researchers report in The Journal of Clinical Endocrinology & Metabolism.
This complicates current guidelines that advise patients with high blood sugar to take metformin while engaging in exercise, researchers said. The reasoning: Two proven therapies should deliver better results when combined.