Maintain a healthy body fat percentage
Eat a balanced, lower-sodium diet
Stay well hydrated
Chew sugar-free gum in moderation
Practice good posture
Keep your tongue resting on the roof of your mouth
Sleep enough each night
Reduce alcohol intake
Avoid smoking
Do regular full-body exercise
Strength train consistently
Manage stress
Improve neck and chin posture in photos and daily life
Keep facial hair well-groomed if you have it
Use skincare to reduce puffiness and bloating
Address allergies or sinus congestion if present
Consider professional dental or orthodontic evaluation if jaw alignment is an issue