The Active Site

William Wallace, Ph.D.
  • 5.0 (16)
  • Alternative Health
  • Updated Weekly

The Active Site is an investigative science show hosted by Dr. William Wallace, examining the claims shaping health, medicine, nutrition, and human biology. Through scientific history, landmark studies, hidden contradictions, competing interpretations, and unresolved questions, each episode asks not only whether a belief is true—but how we came to believe it in the first place.

  1. 1d ago ·  Video

    Will Lithium Really Save Your Brain?

    There is an element sitting in your brain right now, and nobody has established how much you are supposed to have.  It may shape how you think, how you act, and whether your mind holds up as you age. Last year a Harvard lab placed it near the center of Alzheimer's, arguing that running short of it may be one of the first things that goes wrong in the diease. It is already sold as the next longevity compound, the thing that finally protects the aging brain, and the people selling it have a real paper behind them. This investigation takes that case apart study by study to find out how much of it holds. The question sounds simple. The answer, as always, is not. 00:00 – Intro: Lithium and the Brain 01:57 – Lithium's Origin as a Bipolar Drug 04:55 – The Brain Growth Claim 10:10 – Where the Evidence Breaks Down 12:12 – The Harvard Brain Study 15:36 – Should You Take Lithium? 18:04 – New Trial Starting This Fall

  2. Jul 21 ·  Video

    A New Study Just Linked Creatine To Cancer

    Creatine is one of the most-studied supplements in the world, taken by millions of people who have been told for years it is about as safe as anything on the shelf. Then, within weeks of each other, two peer-reviewed studies reached opposite conclusions about what it does to cancer. One found that creatine helped cancer spread faster through the body. The other found that creatine helped the body fight cancer off. Same molecule, serious labs, and results that cannot both be simple. This investigation starts with the alarming study, published only days ago, and takes it apart: what it actually measured, what it measured only in mice, and what it never measured in a human at all. Then it does what the headlines will not, setting that study against the wider body of research to answer the only question that matters for the person taking it. Is creatine feeding cancer, or is something more ordinary going on? 0:00 – Introduction 1:04 – The New Study on Creatine and Cancer 3:22 – Other Studies Findings 6:38 – The Real Explanation 8:41 – A Study on Cancer Patients 9:54 – What's Still Unknown

  3. Jul 14 ·  Video

    Do Aging Clocks Actually Work?

    There are tests now that claim to measure how old you really are. Not the number on your birth certificate, but your biological age, the idea being that two people born on the same day can be aging at different speeds, and that a blood or saliva sample can tell them apart. It starts with a discovery from fifteen years ago, that chemical marks on your DNA shift as you get older. Since then, the clocks built on it have moved fast, from reading your age, to forecasting how long you have left, to scoring each organ, to scoring individual cell types from a single vial of blood. So what does one of these numbers actually measure, how good have they become, and would one handed to your doctor change anything about what happens to you? 0:00 – Can You Really Measure Your Age? 1:04 – The Cheek Swab That Started It 4:00 – Reading Death, Not Birthdays 5:45 – The Hidden Flaw 7:51 – Your Organs Age Differently 8:36 – 11 Ages, One Blood Draw 10:06 – 40 Clocks, One Vial 11:36 – The Missing Proof 14:15 – The Verdict *Citations can be found on my website

  4. Jul 7 ·  Video

    What A Tattoo Actually Does Inside Your Body

    For decades the reassuring story about tattoos was that the ink stays put: a permanent mark, sealed in the skin, chemically done with your body. It isn't. Pigment migrates out of the skin and lodges in your lymph nodes, carrying the carcinogens it came with, and it stays there for the rest of your life. That's not in dispute. What is in dispute is whether any of it actually causes cancer, and in 2024 and 2025 several teams finally ran the studies. They came back contradicting each other, one country finds tattoos raise melanoma risk, another finds the opposite, and the strongest study designs find nothing at all. So what does the evidence actually show, where's the real risk, and who's regulating what goes into the bottle? 0:28 The stained node no one could explain 2:01 What's actually in tattoo ink 3:28 The body's immune response to ink 7:23 Ink and vaccine response 8:42 Where the ink migrates to 12:30 Tattoos and cancer risk 14:44 Conflicting skin cancer data 16:03 A confounding factor in the data 17:27 The risk of laser removal 19:32 How tattoo ink is regulated 23:35 Practical takeaways

  5. Jun 22 ·  Video

    Do You Need to Take Vitamin D with Magnesium & K2?

    For most of a decade, vitamin D came with a warning: take it on its own, and the calcium it raises ends up in your arteries instead of your bones. The fix, supposedly, is vitamin K2. The claim is unusually specific for supplement advice, specific enough to put to randomized, placebo-controlled trials with arterial calcium scored on CT before and after. The trials came back. They don't agree with each other. So what does the evidence actually show, and did a 2026 trial change the answer? 0:00 – The trio everyone's told to take together 1:09 – The magnesium story 2:47 – Why K2 is different 3:45 – Putting it to the test 4:15 – What the trials found 5:55 – What you should actually do 6:40 – K2: cutting through the hype 7:06 – When it makes sense, when it doesn't

  6. Jun 2

    Apigenin for Sleep and NAD+: Does It Hold Up?

    For most of the last century, apigenin was a footnote — a yellow pigment in chamomile and parsley, studied mostly by people cataloguing the antioxidants in plants. In the last few years it has become one of the most-recommended compounds on the internet: the third ingredient in the famous sleep stack, a fixture in longevity protocols built around NAD+, and an addition to formulas aimed at cellular aging itself. But how does the evidence hold up? 0:00 - Introduction 0:45 - Why apigenin is everywhere right now 2:30 - How apigenin works 4:30 - Human anxiety trials 6:00 - Second discovery 8:00 - What the marketing gets wrong 10:45 - Where the evidence actually stands 12:20 - Should you take it?

  7. May 26

    The Truth About Brain Magnesium

    For decades, magnesium sat in the supplement aisle as a mineral for muscle cramps, sleep, and general nutrition. Around 2010, that changed. A branded form called magnesium L-threonate launched on the back of a 2010 MIT rodent paper, and a new category was born — magnesium for the brain. Fifteen years later, that category has expanded to include other brand-targeted forms, premium price points, and confident claims about cognition, memory, and synaptic density. In this investigation, we review the science underneath those claims. IN THIS INVESTIGATION What two papers from 1984 actually said about magnesium and the brainWhy magnesium concentrates differently in brain fluid than in blood, and what that implies for supplementationThe 2010 MIT paper that launched the brand-targeted magnesium category, and the question it didn't answerWhat you find when you trace the authorship of the rodent studies that "independently confirmed" the originalThe magnesium acetyl taurate line and what a 2026 head-to-head comparison reveals about form-specific brain deliveryEvery human trial on magnesium L-threonate, who funded each one, and the structural feature they all shareThe 2024 paper that directly measured magnesium inside living human brains for the first time in twenty-five yearsWhat the ordinary forms — citrate, chloride, oxide — have actually demonstrated in independent human trialsWhy a failed 2007 traumatic brain injury trial matters for everything that followedThe single piece of evidence the brand-targeted magnesium story has never producedWhat to do if you take magnesium for cognitive reasonsSubscribe for more investigations.

  8. May 19

    Were We Wrong About Fish Oil and the Brain?

    For thirty years, the supplement aisle has sold fish oil as one of the simplest decisions you can make for your brain. In 2026, two research teams on opposite sides of the world published papers that complicate that story, and the literature behind them has been building for almost twenty years. IN THIS INVESTIGATION What a 2026 ADNI cohort study of 800+ older adults actually foundWhy faster cognitive decline in fish oil users showed up on every measureWhat the brain imaging revealed when classic Alzheimer's pathology came back negativeThe 2026 Cell Reports mechanism work in repetitive brain injuryWhy EPA and DHA do different things inside the brain, and why most trials ignored the differenceTwenty years of cognitive trials nobody connected, including a 2006 trial whose biomarkers, re-analyzed in 2021, told a different storyWhat the 2026 authors themselves said about how to read their own findingsDose, baseline status, oil quality, and physiological context; the conditions the supplement aisle has never asked aboutWhat twenty years of brain literature actually supports if you take fish oil todaySubscribe for more investigations.

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Ratings & Reviews

5
out of 5
16 Ratings

About

The Active Site is an investigative science show hosted by Dr. William Wallace, examining the claims shaping health, medicine, nutrition, and human biology. Through scientific history, landmark studies, hidden contradictions, competing interpretations, and unresolved questions, each episode asks not only whether a belief is true—but how we came to believe it in the first place.

Information

  • Creator
    William Wallace, Ph.D.
  • Years Active
    2023 - 2026
  • Episodes
    82
  • Rating
    Clean
  • Copyright
    © 2026 The Active Site
  • Show Website
    The Active Site