PTSS refers to the initial reactions following a traumatic event. These can include intrusive thoughts, flashbacks, heightened anxiety, difficulty sleeping, or emotional numbness. Many individuals experience PTSS in the aftermath of distressing events, such as accidents, loss, violence, or natural disasters. However, in most cases, these symptoms gradually lessen as the brain naturally processes the trauma over time.

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PTSD, on the other hand, develops when these stress symptoms persist for an extended period (typically beyond one month) and significantly disrupt a person’s life. PTSD is characterized by recurring distressing memories, intense emotional or physical reactions to trauma-related triggers, avoidance behaviors, and a sense of hyper-vigilance or detachment. Unlike PTSS, which is often temporary, PTSD may require professional intervention, such as therapy or other evidence-based treatments, to help the individual reprocess and heal from the traumatic experience.