Contrary to popular notions about what is normal or healthy, new research says that it is okay not to express or share one's thoughts and feelings after any traumatic experience.

In fact, people who choose not to express their feelings after such an event may be better off than those who do talk about their feelings, according to University at Buffalo, New York psychologist Mark Seery, lead author of the study to appear in the June edition of 'Journal of Consulting and Clinical Psychology.' The study investigated the mental and physical effects of collective traumas on people who are exposed to a tragedy but who do not experience a direct loss of a friend or family member.

It focused on people's responses to the terrorist attacks of September 11, 2001, but the results may generalise to include responses to other collective traumas, says Seery.

Dr Roma Kumar, Clinical Psychologist, Sir Ganga Ram Hospital, does not agree. She says that the best way to relieve the tension after collective trauma is to share it with the close ones.

"I can't comment on the authenticity of the study but as far as I know, the best way to calm yourself after witnessing a collective trauma is to talk about it with your loved ones. On several times I have told my patients not to keep feelings inside. After some point of time it can create problems like high blood pressure, depression or mood-disorder."