| 1. Update your family medical tree every 1-2 years. New family members are born every year. A family member can be diagnosed with a disease at any time. |
| 2. Note the healthy relatives as well. If you have a large number of relatives that do not contract a disease, you can calculate a lower risk of contracting the disease also. |
| 3. Note the bad habits of relatives diagnosed with a disease. We must rule out other factors like heavy smoker, heavy drinker, obese, and occupations that expose a family member to toxic conditions. |