Endorphins are neurotransmitters released during exercise that positively affect mood and enhance performance. These "feel-good" chemicals promote a sense of euphoria, reduce feelings of pain, and can even alleviate stress and anxiety. This mood enhancement encourages individuals to maintain consistent exercise routines, resulting in long-term fitness benefits. A boost in endorphins contributes not only to physical health but also fortifies mental well-being, highlighting the emotional benefits of a regular fitness regimen.