The short answer is, you have to judge for yourself, based on your health and your family medical history.

CNN: Alcohol and breast cancer: Weigh your risks

But when doctors are trying to assess the risk of breast cancer, for example, they will also ask about family medical history.

BBC: Experts urge genetic test controls

Doctors have used a similar model for years that calculates age, family medical history and other factors to predict a woman's risk of getting breast cancer.

BBC: Formula to calculate cancer risk

This loose-leaf book, the work of a retired estate planner, has fill-in-the-blank pages for everything from bank and stock accounts, to life insurance policies, to family medical history and funeral preferences.

FORBES: Organized from Beyond the Grave

From Arizona, over the Internet, the couple picked a potential surrogate and a backup surrogate, just in case, from photos and information such as educational background and family medical history provided by Surrogacy India on a special secure Web site.

WSJ: Hiring A Surrogate In India

Common sense, coupled with knowledge of his family's medical history, remains his personal guide.

ECONOMIST: Peering into your medical future is risky

If you do not know whether your child has atopy, check your family's medical history, since such allergies are often genetic.

CNN: HEALTH

It has drawn up a manifesto for change:A paediatrician should visit each family within 24 hours of the death to take a complete medical history and offer initial support to the family.

BBC: Cot death families plead for support

The newspaper argued, in all seriousness, that by speaking to a family friend it had gained consent to publish details of the couple's medical history.

ECONOMIST: Why top universities are getting interested in journalism