What Causes Blackouts in Humans?

By Staff WriterLast Updated Mar 31, 2020 8:42:38 AM ET

Blackouts in humans are caused by traumas, substances and diseases, according to Better Medicine. A blackout is defined as a period of unconsciousness or memory loss, and it can be benign, serious or life threatening. Better Medicine recommends any unexplained blackouts be evaluated by a medical professional. Memories of what occurred during a blackout are sometimes recoverable. Repeated blackouts can cause difficulty with forming new memories.