A heart attack can happen at any age everyone has some type of risk factors,just because a person gos to the Dr and receives a physical does not mean that they cant have a heart attack,peaple have had heart attacks as youn as three years old,genetic problems,obesity,high blood pressure or just a faulty heart valve that is why the proper diet,exersize,if you smoke quit or if you dip tobacos quit,heavy drinking can cause enlargment of the heart,get regular checkups from your Dr,keep an eye on your blood pressure,try to keep stress to a minimum,The most peaple that you find in a hospital suffering from heart attacks are the caring protective peaple that worry or get angered easily working yourself to death over a job is not worth it either you can always get another job but you only have one life so live it abundantly and try to be happy we all have problems but guass what they go away.