3. They get proper sleep
We all need sleep for mental strength. While we sleep, our body gets a chance to relax and unwind. Our brains rest and get rid of toxic proteins that are by-products of neural activity. Sleep allows the body to focus on repairing itself. People who sleep well are generally more alert, and aware and can make better decisions. It also helps them be more focused and in control of their actions and emotions. Lack of sleep impairs your ability to think rationally and makes you feel lethargic and upset. Mentally strong people understand this and so they make sure they get enough sleep.