When exercise is unhealthy for the heart: How heart problems and sudden cardiac death occur with endurance exercise

Endurance exercise accelerates the development of heart problems in individuals with a particular genetic mutation, a new study finds. In mice with a mutated version of desmoplakin, a protein that maintains the heart wall, exercise made the heart walls come apart sooner. The findings offer insight into how to best manage exercise in individuals with the mutation.

from Fitness News — ScienceDaily http://bit.ly/1PXHW3V
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