feeling tired and unmotivated, or sad and lacking hope. moving or speaking more slowly than usual.digestion problems, such as constipation or reflux.The symptoms of a dopamine imbalance depend on what is causing the problem. Because dopamine helps control the muscles, this leads to problems with muscle stiffness and movements. In Parkinson’s disease, the nerve cells that produce dopamine gradually die. It can lead to conditions that include ADHD, binge eating, addiction and gambling. Having too much dopamine - or too much dopamine concentrated in some parts of the brain and not enough in other parts - is linked to being more competitive, aggressive and having poor impulse control. It’s linked to some mental illnesses including depression, schizophrenia and psychosis. Having low levels of dopamine can make you less motivated and excited about things. What happens if I have too much or too little dopamine? Alcohol and many illegal drugs cause a surge of dopamine too, which is partly why people get addicted to them.ĭopamine also has a role to play in controlling memory, mood, sleep, learning, concentration and body movements. It’s possible, however, that you start craving more of this dopamine ‘reward’, which is caused by many pleasant experiences, including eating nice food, having sex, winning a game and earning money. When you feel good that you have achieved something, it’s because you have a surge of dopamine in the brain. What is the role of dopamine?ĭopamine is responsible for allowing you to feel pleasure, satisfaction and motivation. It’s produced by a group of nerve cells in the middle of the brain and sends out messages to other parts of the brain. Having the right amount of dopamine is important both for your body and your brain.ĭopamine helps nerve cells to send messages to each other.
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