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How Dr. Andrew Weil's 4-7-8 breathing method uses your vagus nerve to reduce anxiety and improve sleep

If you've seen the 4-7-8 breathing method come up on wellness TikTok or in conversations about sleep hygiene, you're not imagining the uptick. As more people track heart rate variability on wearables ...

What is the 4-7-8 breathing method? How it activates the vagus nerve to reduce anxiety and shifts HRV

Does the 4-7-8 breathing method actually work for sleep and anxiety? New research has answers, and they're more nuanced than you'd expect.

Dr. Andrew Weil's 4-7-8 Breathing Method Dropped Sleep Scores From 13 to 4 in a 2025 Study: Here's How

The 4-7-8 breathing method activates your vagus nerve to lower anxiety and improve sleep. Here's what the science actually shows.