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Biofield therapies, such as reiki, therapeutic touch, and healing touch, are considered complementary medicine modalities
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This systematic review examines 66 clinical studies with a variety of biofield therapies in different patient populations
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Biofield therapies show strong evidence for reducing pain, moderate evidence for decreasing the effects of dementia, and low evidence in reducing fatigue and increasing quality of life in cancer patients
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Overall the authors conclude that more and better research is needed to evaluate biofield therapies’ effectiveness
Were they double-blind?
Yes 
