Everyone who lives long enough dies eventually of old age. However, old age means deterioration of major organs including the heart, lungs and kidney. Genetic factors and personal exposure history (to toacco and other smokes, chemicals, dusts and so on) will usually determine which organ will deteriorate most significantly. When there is a family history of heart disease, it is likely that this will be the final problem even if provoking factors are avoided. However, by avoiding the causative factors such as high cholesterol one will prolong ones potential life span and may thereby live as long as the average healthy person who lacks any obvious inherited risk.