I believe it can be healed/managed/cured/reduced whichever word seems fit. Listen a lot of children stutter when there are young and statistics show 80% of them grow out of it. This happened to my brother at like age 4 or 5 for a couple of months. It’s all changing your perception regarding speech because notice when stutters are alone they don’t stutter but around others it comes out. Why? Because we start thinking about it more. Emile Coue, the father of affirmations, actually came up with a powerful setup of reciting affirmations which can help for a lot of things that causes anxiety, fear and anger. It lies in neuroscience. I believe a neuroscience based method to manage stuttering already exists and it’s up to those to learn about it and apply the simple practices. It’s like working out. Show up each and every day and put the work in.