Listening to music while running is a hobby of many running enthusiasts. Some MP3 manufacturers have also responded by developing some MP3 players suitable for carrying while running, so that music can be heard while running. At the same time, MP3 players The weight of the line and itself will not cause additional burden. Some MP3 manufacturers even combine the functions of MP3 players with heart rate monitors, which are waterproof, sweatproof, and anti-shake. They also use a small sensor to record the heart rate, route, number of steps, distance and other factors during running. The calories burned and so on are recorded. Such a powerful function is very attractive to running enthusiasts. Moreover, the appearance of MP3 has also been greatly improved compared to the original. There are MP3s that are combined with sunglasses, and there are watch-shaped MP3s, which almost reduce the inconvenience of carrying MP3 to zero. MP3 is helpful to many running enthusiasts. Some running enthusiasts even say that it is impossible to last for too long without listening to music while running. It is true that listening to music makes the process of running fun and relaxing. Running without listening to music is too monotonous and boring, especially for young people. In addition, the function of MP3 also makes it easier to learn English, which is a headache. Some people practice listening while running, so they can study and be healthy at the same time. It is really a beautiful thing that kills two birds with one stone. But it is undeniable that wearing MP3 players will also have some negative effects on running. For example, if you are running outdoors, listening to MP3 can easily lead to distraction and create safety hazards. Even if there are no safety risks, listening to MP3 for a long time will have a certain impact on people's hearing and health. In addition, one of the biggest drawbacks of listening to music while running is that it may affect the runner's running rhythm. When the music rhythm suddenly changes, the runner's stride frequency and stride length will also change, and the original steady state will change. , the body's energy consumption will increase or decrease, and changing the rhythm at will is a taboo when running, so you can choose some relaxing and soothing music suitable for running!