Maintain a healthy body fat percentage
Eat a balanced, protein-rich diet
Reduce excess salt and processed foods
Stay well hydrated
Exercise regularly, including strength training and cardio
Improve posture with chin tucked and shoulders back
Practice tongue posture with the tongue resting on the roof of the mouth
Sleep enough each night
Limit alcohol and smoking
Chew sugar-free gum in moderation
Keep facial hair groomed to enhance jawline appearance
Use proper skincare to reduce puffiness
Manage stress to lower water retention
Consult a doctor if swelling or facial changes are sudden or unusual