Major vs minor heart attack?

We know that heart attack or in other words damage to the heart due to reduced blood supply is caused due to blockage in the heart's blood vessels. If a major blood vessel is blocked leading to reduced blood supply and damage in a large area of the heart, then this is said to be a major attack. This is mostly life threatening.

Similarly, If a small blood vessel is blocked leading to reduced blood supply and damage in a small area of the heart, then this is said to be a minor attack. This is mostly not life threatening. But yes, it does make the heart weak in most of the cases.