2. Obvious lines: Fitness people usually have obvious body lines, such as abdominal muscles and mermaid lines.
3. Low body fat rate: People who exercise usually have a low body fat rate, which may be manifested as being thin or healthy.
4. Tight skin: People who exercise usually have tight skin without relaxation.
5. Strong cardiopulmonary function: People who exercise for a long time usually have strong cardiopulmonary function, which can be seen from their breathing and heart rate.
6. Bone health: Fitness can help strengthen bone density and make bones healthier.
7. Good mental state: Fitness can improve people's self-confidence and make people's psychology healthier.
8. Good sleep quality: Regular fitness habits help to improve sleep quality.
9. Strong diet control ability: People who exercise usually have strong diet control ability and can manage their diet better.
10. Toughness: Fitness people usually have strong toughness, and they can better cope with and recover from both physical fatigue and psychological stress.