Cardiovascular disease
Genetic factors influence the development of cardiovascular disease in men who are less than 55 years old and in women who are less than 65 years old. Cardiovascular disease in a person's parents increases their risk by 3 fold. Multiple single nucleotide polymorphisms (SNP) have been found to be associated with cardiovascular disease in genetic association studies, but usually, their individual influence is small, and genetic contributions to cardiovascular disease are poorly understood.