anxiety is due to what part of the brain
Some people who suffer from anxiety disorders cannot recall any traumatic event that might explain their condition. This lack of recall might be due to a of the hippocampus. The massive activation of receptors for the secreted by the adrenal glands may cause a reduction in the volume of the hippocampus. This may be one explanation for the learning deficits observed in rats that are subjected to stress, or the weak explicit memories of humans who are very anxious. This small nucleus contains almost half of all the brain neurons that use norepinephrine as a neurotransmitter. The locus coeruleus also projects its axons to those parts of the brain that may be associated with panic disorders (the amygdala, hippocampus, septum, cortex, brainstem, reticular formation, etc). Stimulating an animal's locus coeruleus, like stimulating its amygdala, produces anxiety behaviours. Panic Attacks and the Brain. Panic attacks are a particularly distressing form of anxiety, and these may be due to the health of the brain too. Researchers have found that those with panic attacks often have an overactive amygdala. Anxiety and Brain Activation. There are two different parts to an anxiety disorder, and someone with anxiety may suffer from one or both. The first part is mental – verbal worries, nervous thoughts, etc. The second part of anxiety is physical. FACT: All Anxiety Can Be Cured. Anything can cause your anxiety, but your brain can also change the way it operates if you change the way you deal with stress. No matter what the cause of your anxiety is, you can cure it with the right treatment. To get started, click here to take my free 7 minute anxiety test. 3. As a neurotransmitter, serotonin helps to relay messages from one area of the brain to another. Because of the widespread distribution of its cells, it is believed to influence a variety of psychological and other body functions. 1 Genetics: Some research suggests that family history plays a part in increasing the likelihood that a person will develop GAD. 2  This means that the tendency to develop GAD may be passed on in families. 3  Brain chemistry: GAD has been associated with abnormal functioning of certain neurotransmitters in the brain. Possible problems include low brain cell production of serotonin, a lack of receptor sites able to receive the serotonin that is made, inability of serotonin to reach the receptor sites, or a shortage in tryptophan, the chemical from which serotonin is made. Cells that make serotonin use tryptophan hydroxylase, a chemical reactor which, when combined with tryptophan, forms 5-hydroxytryptamine, otherwise known as serotonin. As a neurotransmitter, serotonin helps to relay messages from one area of the brain to another. 1. Seroton in acts as a ne urotransmitter, a type of chemical that helps relay signals from one area of the brain to another. Although serotonin is manufactured in the brain, where it performs its primary functions, some 90% of our serotonin supply is found in the digestive tract and in blood platelets.
Hippocampus