james asked:
Ever since my brother had braces (they took them off almost 7 months back) he’s had incredibly terrible breath, and it’s become increasingly noticeable.
Is there anyway that he could fix it? I feel like I make him feel bad anytime I tell him that he has rancid breath and to take a mint. 🙁

Its highly possible that he has chronic bad breath disease. I grew up with a kid who had this exact situation and it turned out he had chronic bad breath disease. They sell a tooth paste that helps it stay tolerable for 24 hours. The breath might not be minty but it will be tolerable. Contact your dentist for my information.
Arrange for a professional dental cleaning to thoroughly clean teeth and gums. Have a dental check-up as well to know what and where is the actual cause of bad breath in order to have effective treatment. Make sure to keep up with proper oral hygiene, healthy diet and lifestyle and avoid being dehydrated.
Poor guy! A friend of mine told me about this site she used for her son, it is –breath.net I hope this helps!