Poor sleep habits: heart disease and sleep apnea

BOSTON, MA — The connection between sleep and heart disease is a two-way street: Poor sleep can contribute to heart disease, and heart disease can disturb sleep, reports the January 2007 issue of the Harvard Heart Letter.

Poor sleep has been linked with high blood pressure, atherosclerosis, heart failure, heart attack and stroke, diabetes, and obesity. The thread that ties these together may be inflammation, the body's response to injury, infection, irritation, or disease. Poor sleep increases levels of C-reactive protein and other substances that reflect active inflammation. It also revs up the body's sympathetic nervous system, which is activated by fright or stress.

To continue reading this article, you must login.
  • Research health conditions
  • Check your symptoms
  • Prepare for a doctor's visit or test
  • Find the best treatments and procedures for you
  • Explore options for better nutrition and exercise
Learn more about the many benefits and features of joining Harvard Health Online »