Heart attack may happen when one or more of the blood vessels that supply blood to the heart [Arteries] get blocked. The blockage affects the blood supply to the heart and since it is a muscle too it needs blood to function. The blockage may be due to different causes but most commonly it is due to plaque formation on the walls of the arteries.
As we age the walls of the arteries become thinner and less elastic. Over time, there may be fatty tissue that may be deposited on the walls leading to narrowing of the arteries. The plaque itself may break and cause scar tissue or clots in the blood that block the arteries.
If the blood supply is reduced the heart muscle starts to die resulting in chest pains. Medical terms for a heart attack are Myocardial infarction, Coronary thrombosis or coronary occlusion.
According to the Heart Foundation ,there are certain risk factors that predispose a person to developing a heart problem. Some risks cannot be changed such as:
However, there are various other risk factors that can be changed/controlled:
According to the Heart Foundation, regular low to moderate-intensity exercise for people with Coronary Heart Disease [CHD] prevents the blood vessels narrowing further, prevents blood clotting, increases delivery of blood to the heart and helps maintain a normal heart rhythm. Exercise Physiologists use equipment such as a heart rate monitor and teach you ways to monitor your heart rate. They will show you just the right kind and amount of exercise to do to recover. Most importantly the exercise programs are modifiable. They may be done in a gym, pool or at home!