"Yam, Angelica sinensis, medlar, go..." it seems that overnight, a whirlwind of Aerobics blew up on the Internet - a fitness expert taught people fitness live on a short video platform, which attracted tens of millions of fans in just a few days, and his aerobics created according to the song compendium of Materia Medica caused countless netizens to "punch in". How did this wave of fitness boom rise? The answer may be hidden in the fitness expert's video: the background music is dynamic, the anchor's stepping point is accurate and energetic, and there is no need for any equipment. The action is mainly to swing arms and legs, which is simple and easy to use. The key is that the requirements for the venue are particularly low - as long as you can turn away and turn on the video, you can move with the anchor, which is difficult not to make people eager to try. In recent years, especially since the outbreak of COVID-19, more and more people's fitness venues have extended from gyms and outdoors to family scenes. Under the epidemic situation, the concept of "health is 1" has become more and more popular. On the Internet, videos of home fitness such as carrying laundry detergent to practice arm strength and squatting against a chair are everywhere, and many professional athletes personally demonstrate how to exercise at home. For those who are unable to go out for fitness due to the epidemic, it is also a good choice to follow the online fitness live broadcast. Any exercise has risks, "cloud fitness" is no exception. This is not true. Some netizens have shared their embarrassing experience on social media: some people sprained their feet when doing aerobics, some people have difficulty going downstairs after practicing muscle soreness, and others say they are "in good spirit, but can't feel their legs"... It can be seen that blindly following practice is not acceptable, and fitness should also pay attention to science. Generally speaking, before starting a sport, we should first conduct a comprehensive assessment according to personal physique and health, fully stretch, master the basic movement essentials, find a rhythm suitable for ourselves, and then increase the intensity step by step. For people without exercise habits, they should act according to their ability and avoid being too hasty. In today's increasingly strong national fitness atmosphere, the importance of popularizing correct fitness knowledge and avoiding sports risks is becoming more and more prominent. We can see that many fitness anchors consciously carry out protection knowledge publicity and risk tips during live teaching to remind people to experience the happiness of sports on the premise of safety. Such practices should be more. Sports can be "unlimited", but safety must have a "bottom line". Both fitness practitioners and live broadcasting platforms should adhere to the safety bottom line and fully fulfill the obligation of reminding and informing. Everyone who participates in fitness should also be the first person responsible for their own health and integrate scientific sports into daily life with a responsible attitude. "No pain, no gain". Sports may be one of the fairest things in the world. In the sweat water, we strengthen our body and harvest happiness; In burning heat, we overcome laziness and temper our will. Fitness is not a day's work. Only by taking part in exercise from shallow to deep and persistently can we become better ourselves. Dear friends, let's join the ranks of fitness and jump up with the "compendium of Materia Medica"! (outlook new era)