No doubt some are more susceptible to heart attacks than others. Is it true that heredity accounts for 20% of the likelihood that you'll become ill from something like heart disease? If so, how can one make that 20% risk lower?
We all have different genetic weaknesses. We all have various susceptibilities to various diseases. However, if the question is it possible to prevent disease among individuals who are highly susceptible? The answer is yes. Nutrition is such a powerful regulator of disease incidence that when an optimal diet is consumed through much of life, genetics will have little effect on contributing to the appearance of the common causes of death we see in our society today.
Forget that 20% figure; it's really useless. Family history is almost meaningless when individuals utilize superior nutrition to avoid the nutritional causes of illness. What is not meaningless is risk factors and risk factor reduction. When we look at people living a lifetime on healthy, natural vegetable and fruit predominant diets, none of them get heart attacks, period. Family history only matters when you follow the same disease-causing diet-style that your family did. Luckily we have learned the way to avoid these illnesses.