The respiratory system takes in air starting from your nose and mouth, then sends it through a tube in your throat called the trachea, and then into your lungs. The trachea connects to the lungs by splitting into two tubes called bronchiole tubes, which eventually split into smaller and smaller tubes.
Causes and contributors of low Serotonin Levels and Deficiency. Serotonin is synthesized in the brain and body from tryptophan an amino acid. Tryptophan converts into 5- hydroxytryptophan then into serotonin (5-hydroxytryptamine), if all of the co-factors are present.atural Serotonin is involved in the regulation of several processes within the brain, including, depression, mood, emotions, aggression, sleep, appetite, anxiety, memory and perceptions. Serotonin regulates these processes through pathways that innervate (connect to) different brain regions.
Serotonin is a neurotransmitter that is synthesized, stored, and released by specific neurons in the brain. Natural Serotonin is involved in the regulation of several processes within the brain, including, depression, mood, emotions, aggression, sleep, appetite, anxiety, memory and perceptions.Serotonin regulates these processes through pathways that innervate (connect to) different brain regions.Most cells in the brain, over 40 million, are either directly or indirectly affected by serotonin levels as well as muscles, and parts of the cardiovascular and endocrine systems.auses and contributors of low Serotonin Levels and Deficiency. Serotonin is synthesized in the brain and body from tryptophan an amino acid. Tryptophan converts into 5- hydroxytryptophan then into serotonin (5-hydroxytryptamine), if all of the co-factors are present.