Max, now diagnosed with adhd, has been seeing a therapist who leads him through often, he sits with his eyes closed, paying attention only to his breathing.

Mindfulness training.

Explanation:

Mindfulness training in meditation represents one's effort to focus on the present moment. As all meditation, it is based on full consciousness, therefore one must remain conscious and focused during this type of experience.

Mindfulness finds its roots in Buddhism and some of approaches to psychotherapy (like ACT - Acceptance and Commitment Therapy) value and use this type of meditation as an instrument to help clients lose attachment to any irrelevant information, teaching them to focus on the present moment, and gain better control of their emotions.

As people diagnosed with ADHD lack focus, this approach promises good results and a chance of improvement.