Water birth

Caela • Precious baby Jaxton born December 28, 2018 at 0523💙🥰

So this may be a stupid question but what about water births make it less painful? Or help take pain away? I’ve read so many stories about how people were in labor and contractions hurt so badly but as soon as they got into the tub it relieved the pain by a lot. Sorry if I sound like an idiot but I’m curious 😂