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Dec 11, 2010   //   by Dr. Alireza Taban   //   Uncategorized  

Hormesis rule

A very low dose of a chemical agent may trigger from an organism the opposite response to a very high dose.

chemical agent usualy:

poisoning in high dose, curing in middle dose (inhibit the sign),  stimulating in very low dose (like homeopathy effects)


Hormesis (from Greek hórmēsis “rapid motion, eagerness,” from ancient Greek hormáein “to set in motion, impel, urge on”) is the term for generally-favorable biological responses to low exposures to toxins and other stressors. A pollutant or toxin showing hormesis thus has the opposite effect in small doses as in large doses. A related concept is Mithridatism, which refers to the willful exposure to toxins in an attempt to develop immunity against them.

In toxicology , hormesis is a dose response phenomenon characterized by a low dose stimulation, high dose inhibition, resulting in either a J-shaped or an inverted U-shaped dose response. Such environmental factors that would seem to produce positive responses have also been termed “eustress”.

The hormesis model of dose response is vigorously debated. The notion that hormesis is a widespread or important phenomenon in biological systems is not widely accepted.

The biochemical mechanisms by which hormesis works are not well understood. It is conjectured that low doses of toxins or other stressors might activate the repair mechanisms of the body. The repair process fixes not only the damage caused by the toxin, but also other low-level damage that might have accumulated before without triggering the repair mechanism.

Read more in Wikipedia

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