From the beginning of their existence on this earth, human beings and animals share a unique bond of companionship and mutual understanding. In the modern world, this bond has been explored in new ways and quite a few functional values of the relationship have been generated through the research.

Latest experiments have proven that the constant company of an animal can have a therapeutic effect on the patients of psychological disabilities. This is called animal-assisted therapy and the animals that are used in the method are termed as Emotional Support Animal, abbreviated as ESA. Any species can be used as an ESA as there is no legal restriction regarding this. People having pets of their own can be advised to get the continuous presence of their pets around them. Normally, people with the following problems are suggested by the doctors to have ESAs:

· Depression

· Anxiety

· Cognitive decline

· Post-traumatic Stress Disorder

· Aerophobia

· Social phobia

· Autism

· Bipolar disorder and some other stress-related problems.

As an ESA is a service animal and not a normal pet, there are several facilities that only an ESA is allowed to enjoy, such as free airline travel, access to PET FREE zone, exemption from pet deposit charges, and much more. In order to enable an ESA to have these facilities, a specific document is required. The name of this document is ESA letter that bears the proof that the animal having it is an ESA and not an ordinary animal. For example, if a person owns a pet dog, the thing that he/she will need is an emotional support dog letter. Whether a person is eligible for having an ESA will be decided by the psychiatrists of the renowned clinical organizations only.

If you think that you are going through a tough period of psychological disorder, immediately consult an experienced psychologist. And if he/she recommends an ESA, get in touch with the organizations that provide ESA letters. Visit the websites of these clinics to know more.