There’s no doubt sleep is good for the brain. It allows different parts to regenerate and helps memories stabilise. When we don’t get enough sleep, this can increase stress levels and exacerbate mental health issues.
Evidence also supports the notion that the brain gets rid of more toxic waste when we’re asleep than when we’re awake. This process is believed to be crucial in getting rid of potentially harmful things such as amyloid, a protein whose build-up in the brain is linked to Alzheimer’s disease.
