Psychiatric Disease
In a small twin study on Autism and Attention deficit disorder (around 50 twin pairs for each disease and zygosity) twin study, he argued these disorders may be less heritable than previously considered, implicating a significant family-level environment effect.
Read more about this topic: Neil Risch
Famous quotes containing the words psychiatric and/or disease:
“Indeed the involuntary character of psychiatric treatment is at odds with the spirit and ethics of medicine itself.”
—Kate Millett (b. 1934)
“Smoking ... is downright dangerous. Most people who smoke will eventually contract a fatal disease and die. But they don’t brag about it, do they? Most people who ski, play professional football or drive race cars, will not die—at least not in the act—and yet they are the ones with the glamorous images, the expensive equipment and the mythic proportions. Why this should be I cannot say, unless it is simply that the average American does not know a daredevil when he sees one.”
—Fran Lebowitz (b. 1950)