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The Buteyko breathing method trains people to breathe through the nose, more shallowly, and with regular breath holds. It's been studied mainly as a complementary, drug-free approach to managing asthma — but the evidence is mixed. Several studies point to better asthma control and fewer symptoms, while reviews and larger, older trials generally...

The vagus nerve is suddenly everywhere. On social media, people claim that if you are stressed, tense, or feeling low, all you need to do is stimulate your vagus nerve — through ear massages, gargling, singing, breathing exercises, or special electrical devices. It almost sounds too good to be true. But how much of it is actually backed by science?...

Presented by Arte, this science documentary explores the vagus nerve — often referred to in medicine as the "key to health." As the tenth cranial nerve, it connects the brain and body while influencing breathing, heart rate, and digestion. The documentary highlights new research investigating its therapeutic potential and growing importance for...