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Teemu Arina: Biohacking Your Brain & Body | Episode 02

The Joe Cohen Show

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Is a Sleep Mask a Good Way to Improve Your HRV?

"I don't really try to experiment without it because if I don't wear a sleep mask, my sleep overall is worse. So does a sleep mask improve HRV indirectly or directly? I don't know, but it's not something I want to even test so much," he says. "Having one that fits my face very well is important because you need to be comfortable and you need to block out the light."

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