Ask an Expert

Question of the Day

John H. Krystal, M.D.
February 01, 2011

Length of time varies. According to our diagnostic manual, one must have symptoms for at least one month following an event to receive a PTSD diagnosis. In some cases, particularly where it is not treated, PTSD can last a very long time, perhaps the remainder of one’s life...

Most people with longstanding PTSD find that the symptoms are not steady in their severity. For some people, the symptoms gradually fade over time. Other people find that symptoms may increase when they encounter reminders of their traumatic events. Anniversaries of the event, for example, are commonly difficult times.

John H. Krystal, M.D.
Scientific Council Member
Chair, Department of Psychiatry, Yale University

Eric R. Kandel, M.D. - Brain and behavior research expert on PTSD
Q There is a lot of talk about how to improve memory, but what about erasing traumatic memories from the brains of people that have post-traumatic stress disorder (PTSD)? Is this possible, and if so, do you recommend it?
A I do not like the idea of erasing memories. I think we can provide someone... More >
John H. Krystal, M.D.
Q What would 'recovery' of PTSD look like?
A “To be resilient to things they were having trouble coping with … What... More >