MY FATHERS FATHER DIED FROM A HEARTATTACK-MYDAD DID TOO. NOW MY BROTHER IS IN THE HOSPITAL FOR HEART RELATED ISSUES, AND I CANT MAKE THE DOCTORS DO ANYTHING BUT A STRESS TEST & THEY ALSO SAID STAY AWAY FROM FATTY FOODS. HE CAN RIDE A BIKE ALL DAY, THEY ARE MISSING SOMETHING, I KNOW OF PROCEDURES, B/C OF WHAT HAPPEND TO MY DAD, ECHOCARDIOGRAM, ANGINA, TACKACARDIA IS WHAT HE MY FATHER WAS DIAGNOSED WITH JUST BEFORE HE DIED. NOW MY BROTHER IS IN THE HOSPITAL, AND ALL THEY CAN TELL HIM TO DO IS TOO STAY AWAY FROM FATTY FOODS. HE IS MY ONLY BROTHER I DONT WANT HIM TO DIE, AND B/C THE DOCTOR IS MISSING SOMETHING, THAT I AM SURE OF. WHAT CAN I DO, BEFORE THE UNTHINKABLE HAPPENS?

Summarized question: Is angina genetic?