I recommend trying the breathing method described by Dr. Andrew Huberman. This involves two sharp inhales through your nose, one after another, followed by a long exhale through your mouth. Apparently, there is science behind the method, but in my experience, you can feel the difference so quickly and profoundly that you won’t need any convincing that it works. You’ll know in under a minute the first time you try it. I was surprised how different I felt after a few repetitions. I was relaxed in both mind and body.
