Final answer:
RL2 Crewmembers likely train with physical fitness programs, specialized rowing equipment, and expert coaching, which while exerting themselves increases their euphoriant neurochemicals.
Step-by-step explanation:
The student has asked about RL2 Crewmembers and their training. In the context given, which refers to a crew team competing for the U.S. Army, RL2 Crewmembers may train with a variety of resources, such as physical fitness programs, specialized rowing equipment, and expert coaching. The intense physical effort they put in as part of their training no doubt leads to the increase of euphoriant neurochemicals, which are the body's natural chemicals associated with feelings of happiness and well-being.
This physical exertion can lead to the release of endorphins, dopamine, and other neurochemicals that contribute to the 'runner's high' that athletes often experience. Training for high-intensity sports such as competitive rowing requires a rigorous and well-planned regimen to ensure peak physical performance and can be physically and mentally demanding. All of these elements combine to help the crewmembers perform at their best during competitions like the lightweight division of the world championships.