Hi just had a heart attack due to high (2.6) Troponin enzyme in my heart. I exercise at 4 times a week for over 35 years, blood pressure 98 over 70, no cholesterol issues, no family history on either side of heart attack, 21 % BMI,I also do Yoga and Zumba weekly and play tennis 3 - 4 times a week for over 30 years. I eat fish almost daily 4 - 5 fruits and fresh vegetables daily 2-3 quarts of water each day Why did I have a heart attack? I m 68 years old . My mother is 93 and had her stroke this year at age 93. My dad lived to be 84. Why di I have a heart attack??????