Sleep loss may disrupt the brain's ability to 'unlearn' fear.

KARACHI -- A study reveals how getting less sleep than normal may impair the brain's capacity to regulate fear. The finding helps explain why frequent sleep disturbances make people more prone to anxiety and post-traumatic stress disorder (PTSD). Sleep plays a crucial role in maintaining mental health. For example, people with insomnia are approximately three times as likely to develop an anxiety disorder compared with those who sleep normally, according to asystematic review of research published in

2019. Other studies find that people who experience frequent sleep disturbances - a common issue for health workers and military...