Practice diaphragmatic breathing
Speak from your chest, not your throat
Maintain good posture
Relax your jaw, neck, and shoulders
Slow down your speaking pace
Lower your pitch slightly without straining
Warm up your voice daily
Hydrate regularly
Avoid shouting and excessive throat clearing
Reduce smoking and alcohol use
Get enough sleep
Use vocal exercises consistently
Consider working with a voice coach
Consult a doctor if voice changes are sudden or persistent