Neurofeedback training can help with lots of different things, but one of the most common problems that humans deal with is anxiety. Almost everyone deals with it in some form or another. Anxiety is becoming more and more common in today's world and there is more than one option to deal with it. Here is a great article about Neurofeedback's drug-free approach to ending anxiety by Dr. Ed Carlton.
https://www.worldhealth.net/news/neurofeedback-training-can-create-long-term-changes-brain-function-go-source-anxiety/