Is it true if you have a heart attack it is easier to have another heart attack?
I once asked that same question and the answer I received from my physician was that any organ that is delicate and has gone through a severe trauma is bound to weaken or become weak, plus it takes more time and lots of strength for it to return (if it ever does) to its pristine original.
Therefore, any delicate organ will take more time and strength to recover than a stronger and less complex (or vital) organ. It is not that suddenly cardiac arrests or heart attacks become as recurrent as a rash, nor as a cold, but that since it takes so long to recover, whatever affects it post-trauma will affect it twice as heavily and hence the proneness to another attack is higher.
Nothing but a professional, however, has the exact and correct medical information, though.
In general, yes, though it really depends on the severity of the original heart attack and how quickly a person received effective treatment. Both the heart muscle and the artery walls can be damaged by a serious heart attack, making them weaker and more susceptible to a second attack. This is why the diet and exercise regimen, as well as sometimes physical therapy and surgery, are required to minimize the chance of future attacks and strokes.
Heart attacks can also be mild, where blockages of the arteries have occurred, but without serious long term damage to tissues, muscle or brain, and then the risk of a second attack may not be as pronounced.