The laser burns tiny holes in the heart muscle wall and it was originally thought that these allowed more blood to flow into the muscle wall, stimulating new growth of blood vessels. However, it is now known that the holes soon close up, leaving only a scar. A variety of complementary medical treatments are used to reduce levels of stress. There are many measures that you can take to reduce the risks of getting angina. The effect that angina has on how you live varies enormously.
Some people are able to lead normal lives, apart from restrictions on strenuous exercise.
Others, however, may become severely disabled.