Yes, emotional support animals help people with mental health disorders. The scientific research proved that a person’s friendly dog improved their total health: blood pressure went down, heart rate slowed, more regular breathing, lower stress hormones. When people interact with per their level of cortisol goes down, and oxytocin goes up. So the stress reduces naturally. Just stroking a pet relieves anxiety. You need to ask a mental health professional about the best treatment for you. If a licensed mental health professional considers that emotional support animals help you to reduce mental health issues, you will get an emotional support letter.