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THE JOURNAL

Science you can act on.

Peer-reviewed research, clinical context, and honest analysis. Written for the people who want to understand their biology, not just optimize it.

LONGEVITY SCIENCE

What Is NAD+ and Why Does It Decline With Age?

By the time you reach your mid-forties, the concentration of NAD+ in your tissues may have fallen by as much as half compared to your thirties. And with it, a cascade of cellular maintenance systems begins to slow. This is not a theory about aging.

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LONGEVITY SCIENCE

Glutathione: The Master Antioxidant Your Body Makes Less of Every Year

Your body already produces the most sophisticated antioxidant system on earth. The problem is that it starts dismantling it in your thirties. And by sixty, you may be running at half capacity.

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LONGEVITY SCIENCE

Sermorelin and Growth Hormone: What the Research Actually Says

Growth hormone doesn't disappear with age. It goes quiet. Sermorelin is a molecule designed to speak its language again. It is not growth hormone itself. It is a signal.

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