What is Huberman's view on grounding?

Huberman’s view is that grounding may feel good, but the scientific evidence for it is weak and doesn’t establish what causes the reported benefits.

• Some studies report benefits, but the mechanism is unclear: Research has proposed electron exchange with the Earth or the tactile sensation of bare feet on the ground, but he says there isn’t enough quality science to draw firm conclusions about either explanation. 1 2
• Get outdoors whether or not you ground: He strongly encourages spending time in nature, while distinguishing that broad advice from the less certain evidence for grounding specifically. If grounding feels good, he says it’s fine to do it—such as getting morning sunlight outdoors barefoot, on a clean surface. 3 4
• Psychological grounding is a separate idea: During panic or stress, shifting attention outward—such as noticing a table, the time, or a doorknob—can redirect what feels salient. 5