Eat balanced meals with enough calories
Include protein, complex carbohydrates, and healthy fats
Drink enough water throughout the day
Get enough sleep each night
Exercise regularly
Manage stress
Limit alcohol
Avoid smoking
Eat iron-rich foods if needed
Get enough vitamin B12 and folate
Spend time in natural sunlight
Keep a regular daily routine
Avoid skipping meals
Reduce excess sugar and processed foods
Treat underlying health problems if present