Respuesta :
Because if something happens to them and the doctors need to know whats wrong or what to get them you need to know if they have heart problems < if cancer runs in the family, a type of disease then you can help like i know that my dad has type 2 diabetes which i could possibly get that so i would need to know
A family medical history can identify people with a higher-than-usual chance of having common disorders, such as heart disease, high blood pressure, stroke, certain cancers, and diabetes. ... Knowing one's family medical history allows a person to take steps to reduce his or her risk.