If you are looking for additional reasons to quit smoking, I just read this on another health-related message board. Unbelievable, I didn't know I was doing this to myself, or did I know and just didn't care??

Healthy Blood Flow

When we think of the damage being done to our body by smoking we tend to focus on our lungs. It's natural to do so. We can hear the wheezing, feel the cough and actually sense the gradual deterrioration occurring inside. But if we're going to worry or be concerned based upon the magnitude or size of the health risk we face, then our greatest concern should be on the damage smoking inflicts upon our body's blood flow systems. Yes, smoking related circulatory disease kills far more smokers than lung cancer and the damage started very eary!
Blood is a vehicle for delivering oxygen and nutrients to our body's tissues and organs. Without it they die. Our blood vessels (circulatory system) are the piping highways in which our blood flows. The inside of each healthy blood pipe is coated with a thin teflon like layer of cells that ensure smooth blood flow. Carbon monoxide from smoking or second-hand smoke damages this important layer of cells, allowing fats and plaque to stick to vessel walls. Nicotine then performs a double whammy of sorts.

First, each time new nicotine arrives in our brain in causes a release of adrenaline which in turn immediately releases stored fats into our blood. Yes, the extra food we smokers eat during our big meals is converted to fat and stored, and then pumped back into our blood with each new puff. It's how we were able to skip meals and it's what causes many of us to experience low blood sugar levels when trying to quit. In fact, many of the symptoms of withdrawal - like an inability to concentrate - are due to nicotine no longer feeding us while we continue to skip meals (Note: In order to avoid blood sugar fluctuations don't eat more food, simply spread it out more evenly over your entire day).

These heavy doses or blasts of nicotine released stored fats contact and stick to vessel walls that were damaged by carbon monoxide. It only gets worse. We've recently learned that nicotine itself, inside our vessels, somehow causes the growth of new blood vessels (vascularization) that then provide a rich supply of oxygen and nutrients to the fats and plaques that have stuck to our vessel walls. This internal nicotine vascularization (vessels within vessels) hardens a smoker's blood arteries and veins and further accelerates their narrowing and clogging.

We each have a rough sense of the damage we've done to our lungs but what degree of clogging has already occurred in our blood piping? How long do we have before our coronary arteries- that supply life giving oxygen and nutrients to our heart muscle - become 100% clogged? It's called a heart attack and the portion of the heart muscle serviced by the artery will quickly die. How long do we have before our carotid arteries - supplying life giving oxygen and nutrients to our brain - become 100% clogged? It's called a stroke and the portion of the brain serviced by the artery will quickly die.

The damage being done isn't just to the vessels supplying blood to our heart and brain, it's occurring - to one degree or another - inside every vessel in your body. It effects everything from blood vessels associated with hearing to the skin's blood supply and wrinkles and early aging. Below are links to images that show varying degrees of clogging and clotting. How close are your tissues and organs to death? Ask a skilled circulatory physician to listen your blood flow and tell you how it sounds or to conduct other tests or examinations.