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.
Townsend Letter, Page 3 of 13 Type One Insomnia: Serotonin/Melatonin Deficiency This is the most common cause of insomnia in our experience: When levels of the extraordinary antidepressant neurotransmitter, serotonin, are subnormal, there is typically inadequate surplus to use for conversion to melatonin.ownsend Letter, Page 5 of 13 Type Two Insomnia: GABA deficiency Gamma amino butyric acid is the brainÊ¼s primary inhibitory (i.e., calming) neurotransmitter. It neutralizes adrenaline as a primary function. A GABA deficiency can accompany a serotonin/melatonin deficiency, or cause sleep problems on its own.