| 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 | | |