5. You have pain in your joints
Joints and cartilage are 80% water, and this part of our body is very important since it allows our bones not to rub against each other with every movement. By maintaining a good level of hydration in the body, the joints can withstand the shocks produced by repeated and/or strong movements, such as running or falling.
6. Your muscle mass is decreasing
Your muscles are also made up mostly of water. Thus, the less water you have in your body, the less muscle mass you will have. Drinking water before, during, and after exercise is not only necessary for you to feel good, but also helps reduce the chances of inflammation and pain associated with exercise.