Sleep regulates mood. The better your sleep, the better you feel. This happens because during your sleep, your brain rests and does some repairs. This helps to reduce irritability and stress.
When you sleep poorly, the brain cannot function properly, disrupting serotonin and dopamine. And it leads to lower energy and motivation. Lack of sleep also increases cortisol (a stress hormone), making anxiety worse. Most people need 7-9 hours of sleep.
Restorative sleep improves cognitive function. Better cognitive function helps improve problem-solving and emotional resilience. Good sleep also enhances social interactions, reducing conflict and increasing feelings of connection.
When you get a good nights sleep, you end up with a well-rested brain that will experience more positive emotions. Better emotions lead to greater overall happiness.
