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Trāṭaka: what the candle studies measured
The eyesight claim for candle gazing has one case report and an unfinished trial behind it — no good evidence, and eyes are a...

Nobody tested the prāṇāyāma the sutra describes
Sutra 2.50 regulates the breath by place, time and number. It never gives you a number. Every slow-breathing trial I could find tests a...

Early time-restricted eating, 39 RCTs, very low certainty
Thirty-nine randomised trials, 3,236 adults. Earlier eating won — on the numbers. But the certainty of evidence runs very low to moderate, and none...