REDUCING YOUR RISK OF CORONARY ARTERY DISEASE: HOW TO STOP SMOKING – SOME RECOMMENDATIONS FOR YOULet others, especially family and friends, know how they can help and support you both in words and in action. Especially in the early weeks and months after quitting, stay away from situations in which other people smoke. If you are accustomed to smoking while having an alcoholic beverage, you may have to stop drinking for a while. Alcohol lowers your inhibitions and resolve and frequently promotes a relapse.If you truly want to quit smoking you have to develop a very negative image of cigarettes. You may look at cigarettes as a friend that will help you through any situation and will always “be there” for you. It is true that the cigarettes will always be there, but they will be there at a terrible cost. Think of cigarettes as the insidious killers that they are. It may also help to examine all of the positive aspects of quitting, instead of all that you are giving up. Make quitting a positive choice rather than a negative one. For some people, setting an example for their children is a strong motivator.To quit smoking, you must develop a mental image that smoking interferes with your other lifetime goals. For many years, smokers have been in the minority. Now only 28 percent of Americans smoke, and the very act of smoking makes them less welcome in many environments and social circles.*278\252\8*
A MATTER OF THE HEART: THE MECHANICSThe heart is a truly remarkable piece of natural engineering: day and night, whether we are sleeping deeply or exercising violently, the mere 250-350 g of heart muscle continues to act as our vital pump, maintaining the circulation of blood through our bodies with a smoothness and coordination that any mechanical engineer could only marvel at, and certainly never hope to replicate in a man-made system.The heart is roughly conical in shape, and mostly hollow. It consists of four chambers, two on each side, separated by a wall called the septum. The top chamber on both sides is the atrium, a Latin word that means literally an entrance hall. Indeed, the right and left atria are, as it were, the reception areas for the blood, where it enters to prime the two pumping units. These are the chambers below, called the ventricles, which have thicker muscular walls perfectly designed to expand and contract powerfully in order to send the blood on its way to all parts of the body.Blood travels from each atrium into its respective ventricle through a one-way valve; these valves prevent blood, once in the ventricles, from flowing back into the atria. The valve allowing blood to flow from the left atrium into the left ventricle is known as the mitral valve, so-called because it has two flaps and looks a little like a bishop’s pointed headpiece – a mitre. The valve between the right atrium and the right ventricle is the tricuspid valve, so-called because it consists of three flaps, or ‘cusps’. There are two further valves. One is the aortic valve, which leads from the left ventricle to the aorta, the main distributing artery, and prevents blood leaking back into the left ventricle once it has been pumped through. The other is the pulmonary valve, leading from the right ventricle into the pulmonary artery, and preventing blood from leaking back once it has been pumped towards the lungs.*4/353/5*