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Similarity between coffee effects and qi-stimulating events
Tse Lin Hsu1, Jian Guo Bau, Wei Kung Wang
1Biophysics Laboratory, Institute of Physics, Academia Sinica, Nankang, Taipei, Taiwan, Republic of China.
Journal of Alternative and Complementary Medicine (New York, N.Y.)
|December 6, 2008
Summary
Coffee consumption and qi stimulation produce similar effects on the pulse spectrum, suggesting a shared physiological mechanism. This finding links the psychostimulatory responses and cardiovascular effects of both coffee and qi.
Area of Science:
- Cardiovascular Physiology
- Neuroscience
- Traditional Chinese Medicine
Background:
- Qi-stimulating events previously demonstrated frequency-specific effects on the blood pressure pulse spectrum.
- Coffee and qi induce similar psychostimulatory responses, suggesting a potential link in their physiological mechanisms.
Purpose of the Study:
- To investigate whether coffee consumption induces similar pulse spectrum effects as qi.
- To explore the common physiological mechanisms underlying the psychostimulatory and vascular effects of coffee and qi.
Main Methods:
- Subjects consumed standardized doses of coffee (150 mL at 0.1 g/kg, 0.05 g/kg, 0.05 g/kg) at 30-minute intervals.
- Pulse spectrum changes were recorded before and after coffee consumption.
- Changes were compared to those induced by a water placebo.
Main Results:
- Both coffee and qi consumption resulted in relative peaks at the third, sixth, and ninth harmonics of the pressure pulse spectrum.
- This indicates a consistent frequency-specific pattern in the pulse spectrum associated with both stimuli.
Conclusions:
- Coffee's effects can be considered analogous to qi-stimulating events.
- A common physiological factor, potentially adenosine, underlies the psychostimulatory and cardiovascular effects of both qi and coffee, manifesting as a specific pulse spectrum pattern.
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