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How Michael Shermer Became a Card-Carrying Skeptic

Dr. Michael Shermer is the Publisher of Skeptic magazine, a monthly columnist for Scientific American, and a Presidential Fellow at Chapman University where he teaches Skepticism 101. He is the author of Why People Believe Weird Things, Why Darwin Matters, The Science of Good and Evil, and The Moral Arc. His latest book is Heavens on Earth: The Scientific Search for the Afterlife, Immortality & Utopia.

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Magic: Spiritualism and Theosophy
MONSTERTALK EPISODE 148

The 19th century saw the rise of a variety of secret and secretive movements. Freemasons, Spiritualists, Theosophy and Esoteric Orders give rise to a variety of mystic-themed groups whose influence lurks under the mainstream themes of the 19th century. In this episode of MonsterTalk, we talk with religious studies scholar John L. Crow about the birth of these movements and how they influenced 19th (and 20th) century thought.

John L. Crow

John L. Crow

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pH diets, alkaline water, urine pH tests, pseudoscience and bogus cancer cures abound. In this week’s eSkeptic, Harriet Hall, M.D. combats the plague of pH misinformation by distinguishing pHacts from pHiction. (This column appeared in Skeptic magazine issue 22.2 in 2017.)

pH Mythology:
Separating pHacts from pHiction

by Harriet Hall, M.D.

The internet is a cornucopia of facts, some true and some “alternative” (in other words, lies). One topic that is particularly plagued by misinformation is pH. People are restricting their diet, buying alkaline water, testing their urine with pH test strips, and buying into bogus cancer cures, all on the basis of false pseudoscientific claims. Going back to basics will help us distinguish pHacts from pHiction.

A Quick Primer: pH 101
pH Chart

Click image to enlarge

pH stands for potential of hydrogen. It is a logarithmic scale from 0 to 14 that measures the concentration of hydrogen ions. Water is neutral at pH 7; solutions with a pH less than 7 are acidic; solutions with a pH greater than 7 are basic, or alkaline. Logarithmic means the units represent 10-fold differences: pH 4 indicates 10 times as many hydrogen ions as pH 5. The pH of blood is maintained within a narrow range of 7.34–7.45 by a process known as acid-base homeostasis. Deviations are quickly corrected by compensatory mechanisms in the lungs and kidneys. The pH of stomach acid is 1.5–3.5, human skin 4.7, cerebrospinal fluid 7.5, and pancreas secretions 8.1. None of these are affected by the composition of the diet. The pH of urine can range from 4.6 to 8.0; it changes as the kidneys re-establish homeostasis after an acid or alkaline load. The pH of urine does not reflect the pH in blood or anywhere else in the body.

The Acid/Alkaline: Theory of Disease

This theory claims that too much acidity in the body causes disease, and that eating alkaline foods and drinking alkaline water will improve health. People are encouraged to test the pH of their urine to monitor their acid/alkaline balance. On Quackwatch, Dr. Gabe Mirkin explained that the acid/alkaline theory of disease is nonsense because dietary modification cannot change the acidity of any part of the body except the urine. He says, “If you hear someone say that your body is too acidic and you should use their product to make it more alkaline, you would be wise not to believe anything else the person tells you.”1

An herbalist offered a rebuttal, explaining that while the urine pH is not the same as blood pH, health is affected by small changes in blood pH within the normal range, and the urine pH is a good indicator of how hard your body is having to work to maintain homeostasis and how much stress that is putting on the body’s reserves.2 He claims that being on the low side of the normal blood pH range is unhealthy. There isn’t a shred of evidence to support those claims.

The Alkaline Diet

The alkaline diet leaps wildly to false conclusions from a simple fact: certain foods produce acid ash. In order to buffer the additional acid load, they say the body pulls out alkaline-rich minerals like calcium, phosphorus, and magnesium from the bones, teeth and organs. They say this leads to osteoporosis and fatigue, and compromises our immune system, making us vulnerable to viruses and disease. Avoiding acid foods will make the urine more alkaline, and people with alkaline urine are said to have a reduced risk of osteoporosis, cancer, and heart disease. The alkaline diet is said to facilitate weight loss and increase energy. It is even used to treat cancer. Proponents offer testimonials and cite cherry-picked studies that seem to support their beliefs. However, systematic analyses of all the published scientific studies have determined that the evidence does not support the acid/alkaline theory of disease, so it should be dismissed as pseudoscience. […]

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Detecting Baloney

Baloney Detection Kit Sandwich (Infographic) by Deanna and Skylar (High Tech High Media Arts, San Diego, CA)

The Baloney Detection Kit Sandwich (Infographic)

For a class project, a pair of 11th grade physics students created the infographic shown below, inspired by Michael Shermer’s Baloney Detection Kit: a 16-page booklet designed to hone your critical thinking skills.

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Wisdom of Harriet Hall

Top 10 Things to Know About Alternative Medicine

Harriet Hall M.D. discusses: alternative versus conventional medicine, flu fear mongering, chiropractic, vaccines and autism, placebo effect, diet, homeopathy, acupuncture, “natural remedies,” and detoxification.

FREE Video Series

Science Based Medicine vs. Alternative Medicine

Science Based Medicine vs. Alternative Medicine

Understanding the difference could save your life! In this superb 10-part video lecture series, Harriet Hall M.D., contrasts science-based medicine with so-called “complementary and alternative” methods.

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Top 10 Myths of Terrorism

Is Terrorism an Existential Threat?

This free booklet reveals 10 myths that explain why terrorism is not a threat to our way of life or our survival.

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The Top 10 Weirdest Things

The Top Ten Strangest Beliefs

Michael Shermer has compiled a list of the top 10 strangest beliefs that he has encountered in his quarter century as a professional skeptic.

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Reality Check: How Science Deniers Threaten Our Future (paperback cover)

Who believes them? Why? How can you tell if they’re true?

What is a conspiracy theory, why do people believe in them, and can you tell the difference between a true conspiracy and a false one?

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The Science Behind Why People See Ghosts

The Science Behind Why People See Ghosts

Mind altering experiences are one of the foundations of widespread belief in the paranormal. But as skeptics are well aware, accepting them as reality can be dangerous…

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Top 10 Myths About Evolution

Top 10 Myths About Evolution (and how we know it really happened)

If humans came from apes, why aren’t apes evolving into humans? Find out in this pamphlet!

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Learn to be a Psychic in 10 Easy Lessons

Learn to do Psychic “Cold Reading” in 10
Easy Lessons

Psychic readings and fortunetelling are an ancient art — a combination of acting and psychological manipulation.

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The Yeti or Abominable Snowman

5 Cryptid Cards

Download and print 5 Cryptid Cards created by Junior Skeptic Editor Daniel Loxton. Creatures include: The Yeti, Griffin, Sasquatch/Bigfoot, Loch Ness Monster, and the Cadborosaurus.

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