Hydration

Hydration is a gameplay mechanic that works similarly to hunger. It is a meter/bar that shows you how thirsty you are and how much water/fluid you need. You need to drink water, drink other hydrating fluids, or eat fruit/vegetables to boost your hydration. When your hydration bar reaches zero, you will fall to the ground and your oxygen bar will quickly deplete. If you try to move, you'll only crawl very slowly. Your health bar will slowly deplete unless you get hydrated in some sort of way. Your hydration bar will fall quicker than your hunger bar if you do not stay hydrated. As your hydration bar depletes and gets low, you will become weaker, your cheeks and body will become red-ish, you will walk slower, and it will become even harder to lift heavy objects.

Staying hydrated
To get hydrated, you need to eat fruits/vegetables, especially watermelons, drink water (obviously), and drink other hydrating fluids, such as juice and milk. To drink water, you need to craft a bucket of water with one glass block, which makes 4 glasses of water. You can also make ice water, which is hard to obtain, because you need to craft a bucket of water, one glass block, and one ice block, which can only be obtained by using the silk touch. Here are some hydrating foods/fluids, and how many water drops they fill: Here are the ways to craft a glass of water and ice water:
 * Glass of Water: +3 Minecraft_Water_Drop.png
 * Glass of Ice Water: +4 Minecraft_Water_Drop.png
 * Cucumber: +4 Minecraft_Water_Drop.png
 * Glass of Milk: +2½ Minecraft_Water_Drop.png