Dna, Genetics | featured news

The biggest study yet into genetics and mental health has come up with a stunning result: The five most common mental illnesses -- autism, attention deficit disorder, bipolar disease, schizophrenia and major depression -- all have a common genetic root.

The Food and Drug Administration is issuing regulatory letters to five genetic test makers, the first sign that the government is cracking down on companies that claim to use DNA samples to predict inheritable diseases.