In a rebroadcast from May 15, 2011, Keith talks with Lynette Daws from the Physiology Department of the University of Texas Health Science Center in San Antonio. Daws explains that depression has both a genetic and environmental component, and if one has a genetic tendency towards depression, a stressful life event could very well trigger its onset. Daws tells us about a certain population which may be more disposed to depression if they have an s-allele.
Aired Aug. 30, 2015.