Sometimes, our internal clock gets out of sync with the world around us. The circadian rhythm is our internal body clock. After traumatic events, it usually settles over days to months as we process the emotions. ![]() Insomnia due to stress usually gets better if the stress is removed. The body and mind's natural response to stress and trauma can lead to hyperarousal, preventing people from getting to sleep. This includes things such as work deadlines and exams, as well as major emotional traumas, such as a bereavement. The following causes often lead to this state of hyperarousal.Īny stressful or distressing event can cause insomnia. Hyperarousal is when the parts of the brain that keep us awake are over-active - including when we need them to switch off so we can sleep. We think that insomnia is probably caused by a state called hyperarousal. However, other things happen in people with chronic insomnia that can cause their sleep problems to continue for a long time. It's thought that long-term exposure to these triggers can also cause chronic insomnia. Lots of different things can cause insomnia, at least in the short term. The rest of this feature will take an in-depth look at the causes of insomnia, as at Patient, we know our readers sometimes want to have a deep dive into certain topics. In this series of articles centred around insomnia, you can read about insomnia symptoms, insomnia causes, and insomnia treatments - all written by one of our expert GPs. If you think you have insomnia, find out what to do here.
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