1. First of all, Tik Tok's fitness uncles are real, and their identities are real. Their live content is also true, and their actions in the live broadcast are also true. Their live content provides the audience with some practical fitness knowledge, which can help them improve their fitness level.

2. Secondly, the fitness uncles on Tik Tok can also make it easier for the audience to accept the knowledge of fitness, because their live content is interesting, and the interesting content can make it easier for the audience to accept the knowledge of fitness, and at the same time, it can help the audience to stick to fitness better.