Why do some health conditions skip generations?
If my grandad (fathers side) died of stroke and my other grandad (mothers side) died of lung cancer does that put me at equal risk in having those problems as my mother & father?
Why do genes skip generations?
In: Biology
Lung cancer is not a good example. That’s almost entirely lifestyle.
There *are* identified cancer disposition genes, particularly with prostate and breast cancer. A family history of these will lead to doctors recommending genetic tests.
Stroke can be genetic. If you have a relative that had a stroke at “young” age despite no known risk factors, doctors would be interested in your family blood pressure history. There are genes that influence blood pressure, and cholesterol. People with high genetic risk may need meds even if they’re otherwise fit (and need to stay fit).
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