Fitness group is a group of like-minded people who usually get together in the process of encouraging, supervising and sharing experiences in order to achieve fitness goals and promote mutual growth. The function of fitness group is not limited to sharing fitness knowledge, but also can stimulate the spirit of struggle, improve self-discipline, enhance social skills and relieve anxiety.

Joining a fitness group can gain a cognitive advantage. One is "the power of knowledge", because as a part of collective power, you can get more resources and experience to share than personal knowledge. The second is "cognitive accelerated mathematics", because you not only have your own ideas, but also combine other people's experiences and suggestions to improve your cognitive ability quickly.

Although fitness group is very beneficial, it is not easy to build a good fitness group. The establishment of fitness groups needs to pay attention to each member's fitness goals and arrangements, ensure that each member can get accurate support and promotion, and at the same time pay attention to coordination and ethical issues to ensure that each member can grow up in a harmonious, supportive, respectful and caring fitness environment.