4-7-8 Breathing Timer

Dr. Weil's 'natural tranquilliser for the nervous system.'

Breathe In4

What is 4-7-8 Breathing?

The 4-7-8 breathing technique was developed by Dr. Andrew Weil, based on the ancient yogic practice of pranayama. You inhale through your nose for 4 seconds, hold your breath for 7 seconds, and exhale slowly through your mouth for 8 seconds. Dr. Weil describes it as a 'natural tranquilliser for the nervous system' — unlike tranquillising drugs, it becomes more effective with practice.

How 4-7-8 Breathing Works

The extended hold (7 seconds) allows oxygen to saturate your bloodstream more thoroughly. The prolonged exhale (8 seconds) — twice the length of the inhale — strongly activates the vagus nerve and parasympathetic nervous system. This combination triggers a measurable drop in heart rate, blood pressure, and cortisol. Many people report feeling noticeably calmer after just 2-3 cycles.

Using 4-7-8 for Sleep

The technique is particularly effective as a sleep aid. Practice 4 cycles lying in bed with your tongue resting against the ridge behind your upper front teeth (the classical pranayama tongue position). Dr. Weil recommends limiting to 4 cycles for beginners, gradually increasing to 8 cycles as you become comfortable with the extended hold.

Frequently Asked Questions

Does 4-7-8 breathing really help you fall asleep?

Many practitioners report falling asleep within 1-2 minutes using this technique. The extended exhale activates the parasympathetic nervous system, which governs rest and sleep. It works best with consistent daily practice — Dr. Weil recommends practising twice daily for several weeks to build the habit.

Is 4-7-8 breathing safe?

Yes, for most people. If you feel lightheaded during the hold phase, reduce the durations proportionally (e.g., 2-3.5-4) until your capacity improves. People with respiratory conditions should consult a healthcare provider before starting any breathwork practice.

How is 4-7-8 different from box breathing?

Box breathing uses equal durations for all four phases (4-4-4-4), while 4-7-8 emphasises the hold and exhale. Box breathing is better for acute alertness under stress; 4-7-8 is more suited for deep relaxation and sleep preparation.

Other Breathing Techniques

Box Breathing Timer Equal inhale, hold, exhale, hold — the tactical breathing protocol. Resonance Breathing Timer 5.5 breaths per minute — the frequency that optimises your HRV. Physiological Sigh Timer The fastest known method to reduce stress in real time. Wim Hof Breathing Timer Power breathe. Hold. Recover. Repeat.