How to fall back asleep fast at 3 a.m. – this brain-flip method helps me get more sleep and energy

A psychotherapist explains why this simple relaxation method was able to help me fall asleep fast after waking up at 3 a.m.
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3 Ways to Fall Asleep Faster, Backed by Decades of Research

Here’s how it works. First, place the tip of your tongue against your two upper front teeth, and keep it there. (The goal is to inhale and exhale around your tongue.) Then: While inhaling and exhaling ...