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Neurotransmitters

The human brain contains an estimated 86 billion neurons. Those billions of brain cells communicate by passing chemical messages at the synapse, the small gap between cells, in a process called neurotransmission. Those chemical messages are unique molecules called neurotransmitters.

There are many types of neurotransmitters in the brain, but they do have a few things in common. Neurotransmitters are endogenous—produced inside the neuron itself. When a cell is activated, these neurochemicals are released into the synapse from specialized pouches clustered near the cell membrane called synaptic vesicles. Specific receptors on neighboring cells can then take up the neurotransmitters,…

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  Know your Neurotransmitters

You’ve probably heard about oxytocin in relation to hugging, dopamine in terms of addiction and serotonin in relation to depression. Neurotransmitters are crucial for all sorts of operations in your brain, including mood, appetite and movement. When dysregulated they can lead to undesirable outcomes, including mood disorders like depression and bipolar disorder, addiction and substance use disorders, and psychosis.

 What are the Main Neurotransmitters?

Neurotransmitters all serve a different purpose in the brain and body. Although there are several different minor and major neurotransmitters, we will focus on these major six: acetylcholine, dopamine, norepinephrine, serotonin, GABA, and glutamate.

Articles of Interest

Have we been brain-jacked by Instagram?

One of the first things you probably already know is that Instagram increases dopamine – the chemical in the brain that makes us happy. Great! Ah, yeah, but not so great, because as likes, followers and more keep amping up the dopamine, it keeps us craving hits. And more and more time on Instagram could be neurologically damaging.

Surprise! Most synapses are silent

Scientists have taken a detailed look at how information is transmitted in the brain, and what they found surprised them: Only a fraction of the synapses that serve as connections seem to be active.

After fallow decades, neuroscience is undergoing a renaissance

From your reading of the words on this page, to your memory of breakfast, to the tickle of hair against your skin, your experiences are the work of nerve cells. So are your feelings, chains of reasoning, good and less good habits. So are your anxieties, moods, and the tremblings and lapses of memory which, if they do not afflict you yet, are likely to do so eventually. The whole panoply of human experience can be found in electrochemical pulses passed along and between the 90bn nerve cells, also known as neurons, that make up a person’s brain.

Elementary, Dr. Watson. The Neurotransmitters Did It

Dr. Linnoila, like Dr. Coccaro and others, have settled on the neurotransmitter serotonin as a major player in aggressive and impulsive behaviors. This chemical messenger, a molecular celebrity for its role as the target of the popular antidepressant drug Prozac, has long been implicated in animal studies as a mediator of sexual and social behaviors. Now scientists have reason to suspect that low serotonin in the brain can lead to all sorts of problems.

Let’s Talk Neurotransmitters

Neurotransmitters are the chemicals within your brain that transmit signals between neurons and cells. There are at least 100 neurotransmitters, each with a different function. Four important neurotransmitters are impacted by the foods you eat: serotonin, dopamine, norepinephrine and acetylcholine. These neurotransmitters play a critical role in vital brain functions like sleep, behavior, mood, memory and energy.

Mindset Minds: What is a Neurotransmitter?

Just like there are many different people for different jobs, there are many different types of neurotransmitters, each designed to carry specific messages to start or stop different actions. While the exact number of these different types of neurotransmitters isn’t known, recent research suggests that there may be over 100 different types of neurotransmitters in the body.

Neurotransmitter Buildup May Be Why Your Brain Feels Tired

Performing complex cognitive tasks leads to glutamate accumulating in a key region of the brain, a study finds, which could explain why mental labor is so exhausting.

Neurotransmitters 101

Through a highly regulated electro-chemical chain of events, the brain uses neurotransmitters to communicate with both itself and other organs and tissues in the body. In this manner information is transmitted, neuron to neuron, from one area of the brain or body to another. When this information eventually reaches its final destination, the message is translated into action, initiating or preventing a certain action in the target tissue.

Neurotransmitters and receptors

Did you know there are billions of neurons—and trillions of synapses—in your amazing brain?

Neurotransmitters: emerging targets in cancer

Neurotransmitters are conventionally viewed as nerve-secreted substances that mediate the stimulatory or inhibitory neuronal functions through binding to their respective receptors. In the past decades, many novel discoveries come to light elucidating the regulatory roles of neurotransmitters in the physiological and pathological functions of tissues and organs. Notably, emerging data suggest that cancer cells take advantage of the neurotransmitters-initiated signaling pathway to activate uncontrolled proliferation and dissemination.

Serotonin & Dopamine: The Feel-Good Neurotransmitters

Neurotransmitters carry, boost, and balance signals between neurons and affect heart rate, sleep, appetite, mood, and hunger. The nervous system transmits messages between neurons; communication between two neurons occurs in the synaptic cleft (the gap between the synapses). Electrical signals travel through and are converted to chemical signals through the release of neurotransmitters, causing a specific response. Neurotransmitters influence nerve cells in three ways: excitatory, inhibitory, or modulatory.

The Brain From Top to Bottom

This section describes a few of the best known neurotransmitters that are involved in many functions in both the central and the peripheral nervous systems. Apart from acetylcholine, they all belong to the family of amines or amino acids.

The unsexy truth about dopamine

Dopamine might be the media's neurotransmitter of choice for scare stories about addiction, but the reality is rather more nuanced.

What are neurotransmitters?

A neurotransmitter influences a neuron in one of three ways: excitatory, inhibitory or modulatory.

What You Need to Know About Neurotransmitters

The synaptic cleft was discovered by Spanish pathologist Santiago Ramón y Cajal in the early 20th century. In 1921, German pharmacologist Otto Loewi verified that communication between neurons was the result of released chemicals. Loewi discovered the first known neurotransmitter, acetylcholine.

Resources

20 Natural Ways to Increase GABA and Serotonin to Help Your Anxiety

Remember playing in the sand at the beach when you were a kid? You’d dig a hole in the dry sand with your hands only to have the sand slide back in and fill in the hole as you go. It often felt like one step forward, two steps back. When our bodies are low in GABA or serotonin it can have that ‘one step forward, two steps back’ effect on our anxiety, our ability to calm ourselves or our mood in general. We try to feel better and shake things off but we just don’t seem to get any traction.

7 Neurotransmitters Involved in the Brain-Body Connection

Neurotransmitters are the language of your brain. They allow neurons to communicate to other brain cells. That’s not it, though. Muscles receive cues from neurotransmitters, too. In fact, these chemical messengers send information throughout the body. The different types of neurotransmitters vary widely. Some manage your heart rate and blood pressure. Others make you feel motivated, stabilize your mood, or help you fall asleep.

Physiopedia

Neurotransmitters transmit signals from nerve cells to target cells. These target cells may be in muscles, glands, or other nerves.

StatPearls

There are a number of neurotransmitters used by the body for different functions, including acetylcholine, glutamate, GABA, glycine, dopamine, norepinephrine, and serotonin. Glutamate is the principal excitatory neurotransmitter used in the brain.