Huberman recommends getting outdoor light into your eyes shortly after waking, without sunglasses, to synchronise cortisol and melatonin rhythms.
He emphasises light, exercise, a caffeine cut-off and diet before melatonin or other compounds.
On the podcast he regularly mentions doses of substances such as magnesium, apigenin or L-theanine. Those claims often rest on small or preliminary studies.
The ‘What does the science say?’ rating is an estimate by the Engy editors based on the cited source and the wider research. Not medical advice.
Critics say he turns early or small studies into concrete lifestyle advice too quickly. His podcast is long and popular, but mixes science, anecdotes and product mentions.
Publicity around his private life in 2024–2025 has also drawn attention away from the content. On longevity, he is mainly a communicator, not a clinical longevity researcher.
