I really like this technique. Sometimes it gives me a pleasant head rush which instantly relaxes my entire body. It helps me to fall asleep or to relax in every

I really like this technique. Sometimes it gives me a pleasant head rush which instantly relaxes my entire body. It helps me to fall asleep or to relax in every day life. There's a nice dynamic with this technique where you end up using more of the oxygen in your breath, since you inhale for less time (4 seconds) than you hold & exhale (7+8 seconds). With box breathing, on the other hand, I find it really unpleasant to hold the empty lung position, and also four seconds feels like it's really not enough to use my full breath.