Is there any poison that causes heart attack?

Many poisons are neurotoxins, affecting the nervous system in a variety of ways but generally leading to impairment of lung function and suffocation of the victim. Homicide poisoning is often intended to mimic some medical situation, a heart attack or diabetic coma. This makes determining the cause of death difficult. read more

Probably. In someone with undelying coronary artery disease. This is an area of research as to what factors contribute to an unstable plaque which is a precursor to a heart attack, stress is certainly one factor. read more

Mercury toxicity can raise your blood pressure, cause arrhythmias, and increase your heart attack risk. The most common source of mercury poisoning is fish. To steer clear of this toxin, don't eat fish that are known to be high in mercury — which means those containing 100 to 200 micrograms (mcg) of mercury per 4 ounces of cooked fish, according to the U.S. Food and Drug Administration (FDA). read more