Guide Dogs of Texas provides Annual Continuing Education and Support (ACES) to all of our teams. During your ACES visit, an instructor will visit you to ensure that you and your dog are working in a safe and efficient manner.
Low GABA Levels. One of the main causes of sleep maintenance insomnia results from low levels of the brain chemical (neurotransmitter) called GABA. GABA is your main relaxing and tranquillising brain chemical.
Medications - according to the American Association of Retired Persons (AARP), the following medications can cause insomnia in some patients: 1  Corticosteroids - used for treating patients with allergic reactions, gout, SjÃ¶gren's syndrome, lupus, rheumatoid arthritis, and inflammation of the muscles and blood vessels.