you don't see these diseases running in families like you see in scoliosis.
You can find a story like this about practically anything.
Specific Gene Linked to Cold Sore Susceptibility, Study Finds
Somebodies Cold Sore Blog
I've always had cold sores. They run in my family and my first outbreak was when I was only two years old! My brothers all suffer from them too. Luckily I usually get them on my lips but I have a brother that also gets them on his eyes and nose.
We don't know yet what causes the immune system to become overactive. Scientific evidence indicates that lupus is caused by a combination of genetic and environmental factors. Studies show that lupus runs in families, meaning that certain genes predispose you to the disease. Environmental triggers may include ultraviolet light, bacterial and viral infections, medications, diet and stress.
As a side note I read the other day that car wrecks ran in families and even being a victim of violent crime ran in families.
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