Why Taking Antioxidant Supplements Might Not Be Enough

Illustration comparing supplement capsules to internal cellular defence systems

The antioxidant supplement industry generates billions of dollars in annual revenue worldwide. The premise is straightforward: your body faces oxidative damage, antioxidants neutralise that damage, therefore taking more antioxidants should improve your health. But the cellular science tells a more complicated story, and the clinical evidence has repeatedly failed to support the simple supplementation model. … Read more

Sulforaphane and NRF2: What the Broccoli Research Actually Shows

Illustration of sulforaphane molecules from broccoli activating the NRF2 pathway

Sulforaphane has become one of the most studied compounds in nutritional science. Found primarily in broccoli and broccoli sprouts, this isothiocyanate has been the subject of thousands of research papers investigating its ability to activate the NRF2 pathway. But separating what the research actually shows from what the supplement industry claims requires a careful look … Read more

How Nature Exposure Reduces Oxidative Stress

Illustration of nature and forest environment reducing cellular oxidative stress

The idea that spending time in nature is good for your health is as old as medicine itself. But the molecular mechanisms behind this intuition are only now being mapped with precision. Research over the past two decades has documented specific, measurable reductions in oxidative stress biomarkers following nature exposure, pointing to cellular pathways that … Read more

The Glutathione Recycling System

Illustration of the glutathione recycling system converting GSSG back to GSH

Your body does not just produce glutathione. It recycles it. This recycling system is one of the most elegant features of cellular biochemistry, allowing each glutathione molecule to neutralise multiple reactive species before being broken down. Understanding how this system works explains why glutathione is so effective and why maintaining it matters so much. How … Read more

Redox Signalling vs Antioxidants: What Is the Difference

Illustration comparing redox signalling and antioxidant defence systems

The terms “redox signalling” and “antioxidants” are often used in the same conversation, but they describe fundamentally different things. Understanding the distinction between them is essential for making sense of modern cellular health science, and for understanding why the old antioxidant narrative has been replaced by something more sophisticated. What Antioxidants Do Antioxidants are molecules … Read more

How Poor Sleep Contributes to Oxidative Stress

Illustration of sleep deprivation causing oxidative stress in cells

Sleep deprivation does not just leave you tired. It creates measurable biochemical changes that shift your cellular environment toward oxidative stress, the state where reactive oxygen species overwhelm your antioxidant defences. The research connecting poor sleep to oxidative damage has grown substantially in recent years, and the mechanisms are now well understood. What Happens to … Read more

How Many Redox Signalling Molecules Does Your Body Produce

Illustration of the massive scale of redox signalling molecule production in the body

When people first learn about redox signalling molecules, a natural question follows: how many of these molecules does the body actually produce? The answer reveals something remarkable about the scale at which your cells operate and the sheer volume of molecular communication happening inside you right now. A Scale That Defies Intuition Your body contains … Read more

What Happens When Your Cells Stop Communicating Properly

Illustration of cellular communication breaking down with age

The breakdown of cellular communication does not announce itself. There is no threshold event, no date after which things are measurably worse. The degradation is gradual, operating across years and decades through the incremental accumulation of small failures: signals that arrive slightly delayed, repair responses that are slightly less complete, immune activations that are slightly … Read more

The Role of Mitochondria in Cellular Energy and Signalling

Illustration of mitochondria producing ATP energy inside a cell

Mitochondria entered biology textbooks as the cell’s powerhouse, a label accurate enough to stick but too narrow to capture what the research has revealed over the past three decades. These double-membraned organelles do produce the ATP that powers cellular life — that part of the textbook is right. What the simplified version misses is that … Read more