12 Tricks That Will Help You Control Your Body

2. Calm your nerves by blowing on your thumb.

Why it works When you try to exhale through a nearly blocked airway, your intrapleural pressure gets increased. This stimulates your vagus whim-whams that controls your heart rate. There’s one further reason why this trick might work on you — your thumbs have their own palpitation, so when you blow on them, it affects your overall palpitation as well.

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