One extra hour...just one extra hour of sleep seems to lower the risk of developing calcifications, a precursor to heart disease. The converse is also true, namely, chronic partial sleep deprivation may be a risk factor for an array of common problems including weight gain, hypertension and diabetes - which all correlate with an increased risk of heart disease.
The study cited in the December 24th issue of JAMA, looked at healthy adults who developed coronary calcifications over a...

