Earthing Research on Blood Circulation
Earthing (grounding) the human body reduces blood viscosity—a major factor in cardiovascular disease
Journal of Alternative and Complementary Medicine, 2013, Volume 19 (2). 102-110 (Full- text available).
Chevalier G, Sinatra ST, Oschman JL, Delany RM
The aim of the study is to determine the effects of earthing for two hours on red blood cells (RBCs). Ten healthy participants were grounded using conductive patches on their hands and feet while comfortably reclining on chairs inside a dimly lit, soundproofed room.
The conductive patches were wired into stainless steel rods planted into the ground outside. Blood samples were taken from each subject and were analysed through a microscope to check the zeta potential (a measurement for electrical charge particles suspended in the blood) and the RBC aggregation before and after earthing.
Eighteen measurements for each subject were tracked over the course of the study. After two hours of earthing or grounding, the data for each subject revealed an increase in zeta potential and a decrease in RBC clumping.
This result means there is less likelihood of clumping and clogging in the blood, suggesting that earthing can be used as a strategy to support the cardiovascular system. Efficient blood flow is important in delivering oxygen and nutrients all throughout the body and reduces the risk of hypertension.
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One-Hour Contact with the Earth’s Surface (Grounding) Improves Inflammation and Blood Flow – A Randomized, Double-Blind, Pilot Study
Health, 2015, 7 (8), 1022-59. (Full text available).
Chevalier G, Melvin G, Barsotti T.
The objective of this study is to determine the effects of one-hour of earthing on blood circulation, especially in the face. Forty middle-aged volunteers were recruited to participate. For the double-blind procedure, the subjects were randomly selected into two groups, the grounded and sham-grounded.
Each group sat in a comfortable recliner chair equipped with an earthing pillow, and earthing mat, and conductive patches connected to conducting wires that went into the ground port of an electric power outlet. The lead connecting the port to the earthing products had a built-in resistor for surge protection.
Thermal imaging, taken by an infrared camera, was used to measure body temperatures and changes in the blood flow.
For the experiment, the participants underwent thermal equilibration for 15 minutes to normalise their body temperature. Next, the participants were asked to sit on the recliner chair in a 30-degree angle with the earthing equipment in place and a patch placed on each sole and palm. The subjects were given 10 minutes to relax before the 1-hour earthing (or sham-earthing) session began. After this, post-session thermal imaging was taken.
The result of the thermal image scan showed improvements in fluids movement in the abdomen and blood circulation in the face for the grounded subjects. Based on the findings, it appeared that one-hour of earthing promoted autonomic nervous system control of body fluids as well as peripheral blood flow that may result to better blood circulation in the face and throughout the torso. Earthing may also help with skin health, vitality, facial tissue repair and enhance facial appearance and may translate to better health, according to this study.
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Grounding the Human Body Improves Facial Blood Flow Regulation: Results of a Randomized, Placebo-Controlled Pilot Study
Journal of Cosmetics, Dermatological Sciences and Applications, Dec 2014, vol 6 No 5: 293-308. (Full text available).
The aim of this double-blind pilot study is to assess if one hour of earthing can generate measurable changes in facial blood flow. For this pilot study, 40 participants were recruited and assigned randomly to either the earthing group or sham-earthing group.
The earthing equipment used for this study consisted of transcutaneous electrical nerve stimulation (TENS) patches, conductive mats and pillows. The conducting wires in these materials were connected to a power outlet ground port. For sham-grounding, the earthing system was modified to prevent conduction from the earth.
A Laser Speckle Contrast Imaging (LSCI) camera was used to document real-time, high-resolution videos of the blood flow changes in the face.
The subjects were tested individually for the experimental procedure. They were instructed to sit on a comfortable recliner chair equipped with earthing mats and pillows, and the patches were placed on each of their soles and palms. The switch was flipped on to begin either grounding or sham-grounding them for one hour.
Facial blood flow images were taken 20 minutes after the earthing session began, and additional sets of images after the subjects reached their highest point or peak after the relaxation period.
The results of this pilot study showed improvement in facial blood flow regulation in the subjects in the earthing group only. All earthed subjects experienced either an increase in blood flow sometimes with a fluctuating rhythm. By comparison in the non-earthed group, facial blood flow decreased or remained constant at a low value with no rhythmic fluctuation. The clear difference between the groups shows that even one hour of earthing restores blood flow to the face. Improved blood flow may enhance skin tissue repair, skin health and vitality, and improve facial appearance.
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Grounding the Human Body during Yoga Exercise with a Grounded Yoga Mat Reduces Blood Viscosity
Open Journal of Preventive Medicine Vol.05 No.04(2015), Article ID:55445, 9 pages (Full text available).
Brown. R, Chevalier. G.
The aim of this double-blind research study is to determine whether the benefits of earthing extend to people practising a gentle form of Hatha yoga on a grounded yoga mat for one hour.
Any form of exercise, even gentle yoga can result in an inflammatory response by the body. This leads to an increase in Reactive Oxygen Species (ROS) and Reactive Nitrogen Species (RNS). These highly reactive molecules can attract negatively charged electrons away from other molecules and cells. In the case of red blood cells, this mechanism was expected to decrease their negative charge and increase blood viscosity.
Blood viscosity is a measurement of the thickness and stickiness of blood which affect its ability to flow freely through the vessels. Having high blood viscosity has been linked with a number of chronic diseases including high blood pressure, cardiovascular disease, diabetes and Alzheimer’s disease.
For the study, 28 non-pregnant female subjects between the ages of 35 and 65 were recruited. These women were all either just beginning or just about to being practising yoga but were not experienced. They had body mass indexes ranging between 25.1 and 31.4.
The study was carried out over the course of two days with 14 subjects being tested on each day. Of the 14 yoga mats used, half were grounded to earth and the other half were sham grounded. The subjects selected their own mats at random, unaware of whether their chosen mat was genuinely or sham grounded.
They performed one hour of yoga exercises in 5 x 12 minute sections with one minute’s rest in between. The subjects’ blood was taken before and after the exercise and tested using a Hemathix Blood Analyzer SCV-200. This state of the art piece of equipment enables standardized testing of blood viscosity.
The results showed that the 14 women who performed yoga on the grounded mats had a significant reduction in both systolic and diastolic blood viscosity after just one hour. The women in the sham grounded control group did not experience this decrease. In fact, the ungrounded women had a slight but insignificant increase in blood viscosity following the exercise.
These results indicate that earthing during exercise could be an effective way to reduce inflammation and blood viscosity, along with all of its associated health risks.
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