*Remember to load your trailer with more weight in front of the trailer axle than behind it. A trailer with too much weight on the back end can put it and the tow vehicle into a violent and uncontrollable wag that can literally flip the tow vehicle. Overloading a trailer can cause serious injury or equipment damage.
Most recent answer: Dopamine is both a hormone and a neurotransmitter. It acts as a hormone in the blood and as a neurotransmitter in the central nervous system.
Dopamine and serotonin are both a type of chemical known as a neurotransmitter. There are many different types of neurotransmitter, and many different types of each type. The brain is made up of long cells known as neurons, which pass electrical currents from one to the next.