Only sleep can decrease Adenosine - Matthew Walker

In the latest episodes Matthew Walker is talking about adenosine and that there is only one way to decrease it and it is sleep. Andrew Huberman however on other side states that increase of Cortisol helps also to decrease adenosine hence morning sunlight,exercise,cold showers. Can you clarify?

Does wearing sunglasses increase risk of sunburn?

I saw a video with someone claiming that wearing sunglasses will cause increased risk of sunburn, since the eyes will not be absorbing UV that would then cause the body to produce melanin. Thoughts?

Polyester

Very curious of the impact on testosterone (or other hormones) from wearing polyester, nylon, spandex clothing. I recently heard some negatives and realize all my gym clothes and underwear are polyester. Wondering if I should add some cotton to the wardrobe. Thanks!

Cancellation

Please cancel my accoint

Executive Function