Final answer:
Elevating serotonin levels in the brain can contribute to central fatigue during prolonged endurance events. Serotonin is a neurotransmitter that regulates mood, appetite, and sleep. Multiple factors contribute to fatigue during endurance events.
Step-by-step explanation:
Elevating the levels of serotonin (5-hydroxytryptamine) in the brain can contribute to central fatigue during prolonged endurance events. Serotonin is a neurotransmitter that plays a role in regulating mood, appetite, and sleep. When serotonin levels are elevated in the brain, it can lead to feelings of fatigue and lethargy.
During prolonged endurance events, such as long-distance running or cycling, the body may experience a decrease in serotonin levels. This can lead to an increase in fatigue and a decline in performance.
It is important to note that there are multiple factors that can contribute to central fatigue during prolonged endurance events, and serotonin is just one of them. Other factors include the depletion of glycogen stores, dehydration, and psychological factors.