The hormone often released during physical exercise is endorphins. These neurotransmitters help alleviate pain and induce feelings of pleasure and euphoria, commonly referred to as the "runner's high." Endorphins are linked to improved mood and reduced perceptions of stress. Regular exercise can lead to increased endorphin levels, which contribute to better mental health outcomes. This hormonal response also enhances motivation to participate in physical activities, leading to a more active lifestyle. Ultimately, the release of endorphins plays a significant role in the overall psychological benefits of regular exercise.