Neurotransmitters are chemical messengers in the body. Their job is to transmit signals from nerve cells to target cells. These target cells may be in muscles, glands, or other nerves.

The brain needs neurotransmitters to regulate many necessary functions, including:

• heart rate
• breathing
• sleep cycles
• digestion
• mood
• concentration
• appetite
• muscle movement

Chris takes us through these processes in today's episode.