Neurotransmitter imbalances are important when we look at common brain diseases.

For example, in Alzheimer's Disease, a decrease in a neurotransmitter called acetylcholine causes problems with memory. This neurotransmitter is very important for learning and remembering things.

On the flip side, Parkinson's Disease happens when there isn’t enough dopamine. This lack of dopamine causes issues with movement, such as shaking, stiffness, and slow movements. When dopamine levels drop, the way signals travel in the brain gets messed up, which makes movement harder.

In Multiple Sclerosis (MS), the body’s own immune system can harm myelin, a protective layer around nerve fibers. When myelin gets damaged, it causes problems with communication in the brain. This can lead to tiredness and difficulty thinking clearly. We can also see how neurotransmitters like glutamate might cause more problems in MS.

By understanding these neurotransmitter imbalances, doctors can find better ways to treat these conditions and help manage the symptoms.