Neurotransmitters are important chemicals in our brain that help send signals between nerve cells. They play a big part in how we feel and act. Let’s take a look at some key neurotransmitters and what they do:

1. Serotonin:

   • What it does: Helps manage our mood, anxiety, and happiness.
   • Facts: Low levels of serotonin can lead to depression. About 30% of people with depression have low serotonin. So, keeping serotonin balanced is important!

2. Dopamine:

   • What it does: Linked to feelings of pleasure, rewards, and motivation.
   • Facts: Problems with dopamine are connected to diseases like Parkinson's and schizophrenia. Parkinson’s affects about 1 in 100 people over 60, while about 1% of people may have schizophrenia.

3. Norepinephrine:

   • What it does: Helps us feel awake and alert.
   • Facts: If there are problems with norepinephrine, it can lead to anxiety disorders. Around 18% of people in the U.S. experience anxiety disorders each year.

4. Gamma-Aminobutyric Acid (GABA):

   • What it does: Acts as a calming agent for our nerves.
   • Facts: Low levels of GABA are linked to anxiety disorders, affecting about 31% of adults in the U.S. at some point in their lives.

All of these neurotransmitters work together in a careful balance that impacts how we feel every day. For instance, people who have more serotonin often have a better mood. On the other hand, those with issues in dopamine might not feel motivated to do things.

In short, neurotransmitters are key to managing our emotions and behaviors in everyday life. Thinking about mood-related problems, they impact nearly 50% of people at some time in their lives.