According to the National Health Service (NHS) in the UK, the following are ways to fight tiredness and fatigue:
• eating regular meals and healthy snacks every 3 to 4 hours, rather than a large meal less often
• exercising regularly
• losing weight (if your body is carrying excess weight)
• sleeping well, which includes going to bed and getting up in the morning at the same time every day
• avoiding caffeine in the evening if you are having trouble sleeping
• reducing stress