Lifestyle factor

Family history and life expectancy

Family history of early death from heart disease or cancer is a modest but real predictor of individual risk.

Important. The figures below describe statistical associations across populations, drawn from published research. They are not a prediction about any individual. Outcomes vary widely between people in both directions, and many factors are modifiable. This is not medical advice. For personal guidance, speak to a GP.

What the research suggests

Having a parent or sibling who died early from cardiovascular disease or certain cancers is associated with somewhat higher personal risk, reflecting both inherited factors and shared environment. The effect is modest compared with major modifiable factors such as smoking, and a family history is not destiny.

What helps

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Common questions

How does family history affect life expectancy?

Having a parent or sibling who died early from cardiovascular disease or certain cancers is associated with somewhat higher personal risk, reflecting both inherited factors and shared environment. The effect is modest compared with major modifiable factors such as smoking, and a family history is not destiny.

What is the single most useful change?

Knowing your family history and sharing it with your GP. Sustained changes started earlier tend to have the largest effect, though benefit is associated with change at any age.