23/07/2026
“On sleep depends happiness and suffering, strength and weakness, clarity and confusion. And life itself.”
Charaka wrote this in the Ayurveda scriptures over two thousand years ago. It remains one of the clearest statements ever made about the importance of sleep, and one that modern research continues to validate.
Sleep is when the nervous system recovers, the immune system consolidates, and the body processes what the day has accumulated. It is not a passive state. It is when much of the body’s most important maintenance takes place.
In clinical practice, poor sleep rarely exists in isolation. It is usually connected to something else, the digestion, the stress load, the daily routine, or a nervous system that has been running without adequate recovery for longer than the person realises.
Ayurveda has always treated it this way. Not as a symptom to manage, but as a signal worth understanding properly.
— Charaka Samhita, Sutrasthana XXI.36