1. "Where there is a will, there is a way": Although hard work and persistence are important, not everything can be achieved through hard work. In terms of fitness, genetic factors and age will also affect your fitness effect.

2. "Muscle man/beauty": The word "muscle man/beauty" is often used to describe those who have a lot of muscles, but this statement also has a certain derogatory meaning. Excessive pursuit of muscles may ignore other aspects of health. Everyone's body structure and genes are different, and a person's value cannot be evaluated by the number of muscles.

3. "Don't eat, just exercise to lose weight": Fitness and losing weight are two different concepts. Although fitness can help you burn calories, if you don't pay attention to your diet, you may still consume more calories than you consume, leading to weight gain.

4. "Doing sit-ups can train abdominal muscles": Although sit-ups are a good exercise to train abdominal muscles, it is impossible to train obvious abdominal muscles only by this exercise. Exercising abdominal muscles needs to consider many factors, including diet, exercise and rest.

5. "Running can lose weight": Although running can consume calories, if you don't pay attention to your diet, you may still consume more calories than you do, leading to weight gain. In addition, running has different effects on everyone's health. Some people may not be able to adapt to this kind of exercise, so they should choose the exercise mode that suits them according to their physical condition.

In short, I didn't know these words were deceptive until I got fit, because fitness is a very complicated process, and many factors need to be considered, including diet, exercise, genes and age. Therefore, we need to have a correct understanding of our bodies and adopt scientific methods to keep healthy.