Eat enough protein
Include iron-rich foods
Get enough zinc, biotin, and vitamin D
Stay hydrated
Avoid crash diets
Use a gentle shampoo
Condition regularly
Limit heat styling
Avoid tight hairstyles
Reduce chemical treatments
Massage the scalp
Manage stress
Sleep enough
Treat dandruff or scalp issues
Trim split ends regularly
Use a volumizing haircut
Consider minoxidil if appropriate
Check for thyroid or hormone issues
See a dermatologist if hair thinning continues