Poor sleep quality increases aggression, and anger possibly by affecting emotional cognition.

Health and Healing Dealing with Trauma and Addictions · Jan 1, 2026 · 12m

Are you getting a good night's sleep? Good sleep is paramount to the healthy functioning of our brains and bodies. As sleep plays an important role in the physical and mental health of individuals, studies are thought to uncover the causal relationship and mechanisms between sleep quality and aggressive behavior to raise public awareness of the importance of sleep.

Some researchers have suggested that high levels of aggressive behavior may also contribute to poor sleep, but findings do not support such a view. Sleep is extremely important to humans, and poor sleep can increase hostility in…