| Water is gained from |  |  | 
| Water is lost by |  |  | 
| Balancing water |  |  | 
| Kidneys work by |  |  | 
| The kidneys control blood concentration |  |  | 
| Dehydration may happen |  |  | 
| The concentration of the blood is detected |  |  | 
| ADH secretion is controlled |  |  | 
| An increase in blood ADH |  |  | 
| Alcohol inhibits ADH |  |  | 
| Ecstacy stimulates ADH production |  |  |