From Dr. Robert Schneider, MD*:
"Your heart, which is the size of your closed fist, is a small, overworked muscle, pumping 24/7. And for every extra pound of fat you carry, your body has to grow seven new miles of blood vessels -- primarily capillaries but also small arteries (arterioles) and small veins (venules) -- and your heart has to work that much harder. Put on two pounds and that’s fourteen new miles of blood vessels; fifty extra pounds requires 350 miles of new blood vessels. On and on, do the math.
But good news: the opposite is true. For every pound of fat you lose, your body sheds seven miles of blood vessels. They just re-absorb, break down, and get excreted. Lose two pounds and that’s fourteen miles of blood vessels gone, lightening your heart and body’s load.
Repeat this out loud to yourself: even a little is a lot. Let it be your mantra."
*[I]Robert G. Schneider, M.D. former Chief of Medicine in the Strategic Air Command, and Senior Attending Physician Emeritus, Departments of Medicine and Cardiology of Norwalk Hospital.[/I]