How Does a Lack of Sleep Affect Your Mental Health?
The relationship between sleep and mental health is complex, according to research. While lack of sleep has long been known to be a consequence of many psychiatric conditions, more recent views suggest that lack of sleep can also play a causal role in both the development and maintenance of different mental health problems.
In other words, sleep problems can lead to changes in mental health, but mental health conditions can also worsen problems with sleep. Lack of sleep may trigger the onset of certain psychological conditions, although researchers are not completely certain of the underlying reasons for this.
If you're having trouble falling asleep or staying asleep, it's important to talk to a doctor because of the circular relationship between your sleep patterns and your mental state.
Brain Fog
Sleep is necessary for our brains to function fully. Brain fog, which frequently manifests as confusion or difficulty concentrating, can result from insufficient sleep. You may find it's more difficult to recall certain memories or find the right words for what you want to say when you didn't get enough sleep the night before.5 You will probably find it difficult to be productive—the idea of certain tasks can feel completely overwhelming when your brain hasn't had a full night's rest.
Mood Alterations
Not getting enough sleep may cause mood changes, including increased irritability. Participants in one study also experienced feelings of anxiety and depression as a result of sleep deprivation.7
Research finds that lack of sleep can lead to increased levels of anger and aggression. This is because when sleep-deprived, the brain cannot function normally, which means it can't suppress the reactivity of the amygdala (the emotional center of the brain).
Behavior Changes
Along with mood changes may come unusual behaviors. Sleep deprivation can make people more prone to impulsiveness, hyperactivity, and emotional outbursts. We might notice that we struggle to interact with other people when we're sleep-deprived.
You may act erratically and feel like you have a short fuse—maybe you yell at someone for making a mistake at work, or leave the room completely if someone says something that annoys you.
Stress
Poor sleep can make it much more difficult to cope with even relatively minor stress. Daily hassles can turn into major sources of frustration. You might find yourself feeling frazzled by everyday occurrences.
Thinking about your poor sleep quality can even be a source of stress. You know that you need to get a good night's sleep, but then find yourself worrying that you won't be able to fall or stay asleep (which can also keep you up at night).
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