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2. Hair analysis - Wikipedia

   en.wikipedia.org/wiki/Hair_analysis

   The advantages of hair analysis include the non-invasiveness, low cost, and the ability to measure a large number of, potentially interacting, toxic and biologically essential elements. Hence, head hair analysis is increasingly being used as a preliminary test to see whether individuals have absorbed poisons linked to behavioral or health problems.

3. Hair analysis (alternative medicine) - Wikipedia

   en.wikipedia.org/wiki/Hair_analysis_(alternative...

   In mainstream scientific usage, hair analysis is the chemical analysis of a hair sample. The use of hair analysis in alternative medicine as a method of investigation to assist alternative diagnosis is controversial [1] [2] and its use in this manner has been opposed repeatedly by the AMA because of its unproven status and its potential for healthcare fraud.

4. Drug test - Wikipedia

   en.wikipedia.org/wiki/Drug_test

   The chart depicts the longer detection times of the metabolites. In the case of hair testing, the metabolytes are permanently embedded into hair, and the detection time is determined by the length of the hair sample used in the analysis. The standard length of head hair used in the test is 1.5", which corresponds to about 3 months. Body/pubic ...

5. Talk:Hair analysis (alternative medicine) - Wikipedia

   en.wikipedia.org/wiki/Talk:Hair_analysis...

   Kruse-Jarres JD. Limited usefulness of essential trace element analyses in hair. Am Clin Lab. 2000;19(5):8-10. Hu H. Exposure to metals. Prim Care. 2000;27(4):983-996. Hindmarsh JT. Caveats in hair analysis in chronic arsenic poisoning. Clin Biochem. 2002;35(1):1-11. Niggemann B, Gruber C. Unproven diagnostic procedures in IgE-mediated allergic ...

6. Neutron activation analysis - Wikipedia

   en.wikipedia.org/wiki/Neutron_activation_analysis

   Neutron activation analysis is a sensitive multi-element analytical technique used for both qualitative and quantitative analysis of major, minor, trace and rare elements. NAA was discovered in 1936 by Hevesy and Levi, who found that samples containing certain rare-earth elements became highly radioactive after exposure to a source of neutrons ...

7. New analysis of Beethoven’s hair reveals possible cause of ...

   www.aol.com/locks-beethoven-hair-may-reveal...

   An analysis of locks of Ludwig van Beethoven’s hair suggest he had lead poisoning. It may have contributed to chronic ailments, deafness and — ultimately — his demise.

8. Trace element - Wikipedia

   en.wikipedia.org/wiki/Trace_element

   A trace element is a chemical element of a minute quantity, a trace amount, especially used in referring to a micronutrient, [1] [2] but is also used to refer to minor elements in the composition of a rock, or other chemical substance. In nutrition, trace elements are classified into two groups: essential trace elements, and non-essential trace ...

9. This Nighttime Habit Could Be A Key Indicator Of Dementia ...

   www.aol.com/nighttime-habit-could-key-indicator...

   "Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Good sleep is crucial for your overall health, but new research suggests it could impact your ...