PTSD Symptoms May Be Prevented With Ketamine

Columbia researchers have found that giving a small dose of ketamine one week before a psychologically traumatic event may help prevent post-traumatic stress disorder.

Marijuana Use Increasing Among Pregnant Women

Among pregnant women, the prevalence of past-month marijuana use increased from 2.4 percent in 2002 to 3.9 percent in 2014, researchers from Columbia Psychiatry found.