Types of Placebos

When people think of placebos, people tend to think of pills.  Placebos can also be injections, operations, acupuncture, and so forth.  The anthropologist Moerman says that the active ingredient in placebos is meaning.   The meaning of placebo is positive.  However, there are nocebos whose meaning is negative.  Nocebos can be an effective weapon for terrorists.  Were terrorists to spray a gas over an area, people would likely get sick., even if the gas was harmless.  Or they could claim that water had been poisoned and sicknesses would likely result.  There is one theory that adverse side effects of medications are a type of nocebo.

Placebos are available for sale on the internet.  You can even find them at amazon.com.  And given their effectiveness, you might want to try some of these yourself.  Remember that a placebo can work even you know it is a placebo.  There are also ways of making a placebo more effective.  Size, larger being more effective, and number, more being more beneficial, are also effective.  The effects of color are more complicated with different colors being more effective for different outcomes.

This post is based on content from “Cure:  A Journey Into the Science of Mind Over Body” by Jo Marchant,

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