Why Is Being Underwater So Peaceful?

The video explores the relaxing effects of water immersion, attributed to the mammalian dive reflex. This reflex, triggered by water contact with the face, reduces heart rate, inducing calmness. It's an evolutionary adaptation for conserving oxygen underwater, redirecting blood to vital organs, and maintaining body temperature. The reflex is present in all mammals, including humans, and can be activated by splashing water on the face, offering a simple stress relief method.

What is bradycardia and how is it related to the mammalian dive reflex?

In what ways can the mammalian dive reflex be beneficial for humans?