When a person is dehydrated, you can notice a drop in their breathing rate, their stamina, urination decreases, they become less aware, and their overall energy level decreases. 
 
        
             
        
        
        
The answer to your question is true
        
             
        
        
        
It gets good food by excersicing, eating good food, and drinking lots of water. Eat a healthy diet, and lots of protein. Drinking water helps every part of your body. Drink 8-10 glasses or more a day. Excersise to stay strong, and able to do things.
~Silver