Maintain a healthy body fat percentage
Eat a balanced, calorie-controlled diet
Reduce excess salt and processed foods
Stay well hydrated
Exercise regularly, including cardio and strength training
Improve posture by keeping your head and neck aligned
Practice tongue posture with the tongue resting on the roof of the mouth
Avoid frequent chewing of gum if it causes jaw strain
Sleep enough each night
Manage stress to reduce facial tension and bloating
Limit alcohol intake
Stop smoking
Consider facial hair grooming to enhance jawline appearance
Use proper skincare to reduce puffiness and improve definition
Consult a doctor if jaw swelling or asymmetry is present