Anxiety in the brain is caused by a complex interplay of different factors.
The causes of anxiety in the brain include imbalances in neurotransmitters such as norepinephrine, GABA and serotonin, genetic predisposition, heightened activity in your amygdala and even stressors that can trigger the fight or flight response.
This leads to an overactive limbic system that is responsible for emotional processing.
Several neurotransmitters and hormones have a role in anxiety including imbalances of gamma aminobutyric acid.
The part of the brain that controls sleep is the hypothalamus which is located in the central part of your brain and is also the primary region of the brain that is responsible for controlling sleep.
The hypothalamus that controls sleep contains several clusters of neurons which regulate the sleep and the wake cycles.
The suprachiasmatic nucleus cluster receives signals from your eyes about light and darkness that helps to set the body's circadian rhythm which is the sleep and wake cycle.
The ventrolateral preoptic nucleus is the cluster that produces the chemicals that promote sleep.
And the lateral dorsal tegmental area is a cluster that produces the chemicals that help you to maintain your wakefulness.
The pons is the region of the brain that controls REM sleep, the cerebral cortex region processes information that is related to sleep and wakefulness and the brainstem is the region of the brain that contains neurons which help to transition between sleep and wake states.
The part of the brain that controls bowel movements is the brainstem and the spinal cord which play crucial roles in controlling bowel movements.
The pons and the medulla oblongata in the brainstem receive signals from your gastrointestinal tract and coordinate the actions of contraction of the colon muscles to propel poop and relaxation of your anal sphincter to allow your poop to pass through.
There is also some bowel function which is controlled by your vagus nerve that begins in your brain stem and runs through your torso.
The brain builds new thoughts from the intricate patterns of the electrical and chemical signals which travel between the neurons and when the neurons fire they release what is called neurotransmitters and trigger electrical signals in neighboring neurons.
The signals then propagate through your brain and create complex patterns of activity that represent your thoughts.
The brain thinks by receiving signals and processing signals from the senses and then interpreting that information and storing it as memories.
The process of the brain thinking and storing memory involves the use of neurons that fire electrical impulses which travel through the brain and release chemicals that also act as messengers.
Neurotransmitters pass through the synapse which is the gap that is between two nerve cells.
They then attach to the receptors on the receiving cell and the process repeats from neuron to neuron as the impulse travels to it's destination.
This communication of the brain allows us to move, feel, think and communicate.
The brain is also considered to be the boss of the human body because the brain acts as the central control center of the body and coordinates and regulates all the body's functions.
The brain coordinates and regulates all of the body functions which include movement, emotion, breathing, heartbeat and complex cognitive processes including thoughts.
The brain along with the spinal cord in the body is what forms the central nervous system and acts as the body's primary communication and control network.
The part of the brain that controls stress is the amygdala which detects a potential threat and then signals the hypothalamus to initiate the stress response and triggers the release of stress hormones such as adrenaline and cortisol.
The triggering of the release of the stress hormones lead to the fight or flight reaction.
The part of the brain that controls taste is the gustatory cortex.
The gustatory cortex that controls taste is located in the frontal lobes and the insular lobes of your cerebral cortex and the gustatory cortex receives signals from your taste buds on your tongue and then processes them into the perception of taste.
The gustatory cortex also distinguishes between the 5 basic tastes which are umami, bitter, salty, sour and sweet.
The part of the brain that controls emotions is the limbic system which also includes the structures of the hypothalamus, hippocampus, and the amygdala which control memory, motivation, behavior and emotions.
The amygdala is what plays a key role in processing your emotions including anger and fear that is associated with the fight or flight response.
The hippocampus is primarily responsible for forming and storing memories and are often intertwined with your emotions.
Your hypothalamus is what regulates various functions of the body which include temperature, thirst, hunger and also plays a role in your emotional responses.
The biggest part of the brain is the cerebrum which is located in the front and upper part of your brain.
The cerebrum is also responsible for a white range of functions which include emotion, language, sensory perception, movement and reasoning and thoughts.
The cerebrum part of the brain comprises of gray matter also known as the cerebral cortex and white matter at it's center.
The cerebrum which is the largest part of the brain initiates and coordinates movement and also regulates temperature.
The skull is what protects the brain and the skull is a hard bony structure which encases the brain and protects it from external impacts.
And three layers of membranes that are called meninges cover your brain and your spinal cord and provide a protective cushion and contain cerebrospinal fluid.
The cerebrospinal fluid is a clear fluid that fills the spaces within your meninges and also surrounds your brain and provides shock absorption and buoyancy.
A blood brain barrier which is a network of capillaries which lines your brain tissue restricts the entry of any harmful substances which include viruses, bacteria and toxins.
Your immune system also plays a role in protecting your brain by detecting and also eliminating pathogens which might try to enter your brain.
Your brain also has the ability to adjust it's blood flow to maintain a constant supply of nutrients and oxygen and even during any changes in heart rate and blood pressure.
The 7 main functions of the brain are sensory processing, cognition, motor control, regulation of bodily functions, language and memory.
The brain is a complex organ in the body that controls hunger, breathing, temperature, vision, motor skills, touch, memory, thought and every other process that regulates and controls out body.
How our brain works is through receiving sensory information, processing the sensory information, initiating motor responses, sending motor information and sending the motor information to the body.