# Rules of Heliogeomagnetics Diversely Coordinating Biological Rhythms and Promoting Human Health
## 4 Discussion
### Bell-Shaped, Typical of Biphasic, Response of Circadian BP Rhythm to Geomagnetic Stimuli  
This study showed several effects of geomagnetic stimuli on human BP and HR. One of them is a hormetic (biphasic) response of BP to geomagnetic activity, which could represent an adaptive compensatory response to a novel environmental stress. In biology and medicine, \"hormesis\" is defined as a process in which exposure to higher doses of a given environmental factor is damaging, but it is beneficial at lower doses, when it can induce a beneficial adaptive effect on the cell or organism [76; 77; 78; 79; 80; 81; 82; 83; 84]. Of course, zero doses will not cause any beneficial biological effects because of a lack of adaptive responses at a subcellular, cellular, tissue, or clinical level. \begin{table}
\begin{tabular}{c c c c c c c c c c c c c c} \hline \hline  & \multicolumn{4}{c}{**Group A (n = 10)**} & \multicolumn{4}{c}{**Group B (n = 6)**} \\  & \multicolumn{4}{c}{**(Geomagnetic Stimulation Started in the Evening: 140-20:00)**} & \multicolumn{4}{c}{**(Geomagnetic Stimulation Started in the Morning: 06:00-12:00)**} \\ \cline{2-13}  & & \multicolumn{2}{c}{**Quiet Day**} & \multicolumn{2}{c}{**Disturbed Day**} & \multicolumn{2}{c}{**Paired \(t\)-Test**} & \multicolumn{2}{c}{**Quiet Day**} & \multicolumn{2}{c}{**Disturbed Day**} & \multicolumn{2}{c}{**Paired T-Test**} \\ \cline{2-13}  & & **Mean** & **SD** & **Mean** & **SD** & **t-Value** & **\(p\)-Value** & **Mean** & **SD** & **Mean** & **SD** & **t-Value** & **\(p\)-Value** \\ \hline \multirow{3}{*}{HR (ppm)} & M & 67.82 & 7.72 & 68.12 & 8.32 & 0.205 & 0.8419 & 66.21 & 6.57 & \begin{tabular}{c} 68.5 \\ (103.4\%) \\ \end{tabular}  & 6.45 & 2.178 & 0.0813 \\ \cline{2-13}  & A & 8.17 & 4.06 & 8.37 & 2.76 & 0.199 & 0.8468 & 8.64 & 3.60 & \begin{tabular}{c} 11.92 \\ (138.0\%) \\ \end{tabular}  & 3.43 & 2.427 & 0.0596 \\ \cline{2-13}  & \(\Phi\) & 14:51 & 2.54 & 14:15 & 4:12 & \(-\)0.514 & 0.6199 & 13.21 & 1.38 & 15.37 & 3.43 & 1.257 & 0.2642 \\ \hline \multirow{3}{*}{(degrees)} & M & 3.615 & 0.182 & \begin{tabular}{c} 3.666 \\ (101.4\%) \\ \end{tabular}  & 0.202 & 3.484 & 0.0069 & 3.711 & 0.201 & 3.728 & 0.211 & 1.471 & 0.2012 \\ \cline{2-13}  & A & 0.092 & 0.060 & \begin{tabular}{c} 0.202 \\ (219.6\%) \\ \end{tabular}  & 0.087 & 3.639 & 0.0054 & 0.083 & 0.044 & \begin{tabular}{c} 0.152 \\ (183.1\%) \\ \end{tabular}  & 0.079 & 2.845 & 0.0360 \\ \cline{2-13}  & \(\Phi\) & 9:22 & 9.46 & 4:16 & 6.25 & \(-\)1.773 & 0.1100 & 5.46 & 8.50 & 5.58 & 8.40 & 0.034 & 0.9741 \\ \hline \multirow{3}{*}{H (nT)} & M & 11,022.5 & 27.03 & \begin{tabular}{c} 11,01.0 \\ (99.8\%) \\ \end{tabular}  & 31.50 & \begin{tabular}{c} -2.291 \\ (232.0\%) \\ \end{tabular}  & 0.047 & 11,017.3 & 26.38 & 10,991.2 & 54.09 & \begin{tabular}{c} -1.266 \\ (103.6\%) \\ \end{tabular}  & 0.2612 \\ \cline{2-13}  & A & 44.08 & 57.97 & \begin{tabular}{c} 102.28 \\ (232.0\%) \\ \end{tabular}  & 59.34 & 3.692 & 0.0050 & 65.97 & 70.47 & 118.73 & 101.72 & 1.635 & 0.1629 \\ \cline{2-13}  & \(\Phi\) & 15.09 & 4:55 & 13:15 & 2:19 & \(-\)2.124 & 0.0626 & 15:18 & 3:46 & 12:51 & 4:25 & \(-\)2.044 & 0.0963 \\ \hline \multirow{3}{*}{Z (nT)} & M & 51,972.3 & 38.04 & 51,974.0 & 44.41 & 0.471 & 0.6490 & 51,994.9 & 42.10 & 52,002.3 & 47.96 & 0.810 & 0.4550 \\ \cline{2-13}  & A & 14.72 & 11.46 & \begin{tabular}{c} 37.32 \\ (253.5\%) \\ \end{tabular}  & 21.64 & 4.557 & 0.0014 & 21.02 & 20.44 & 57.23 & 72.68 & 1.148 & 0.3027 \\ \cline{2-13}  & \(\Phi\) & 14:37 & 4.54 & 12.57 & 9.21 & \(-\)0.483 & 0.6408 & 13:35 & 6.36 & 12:36 & 8:47 & \(-\)0.212 & 0.8405 \\ \hline \multirow{3}{*}{Inc (degrees)} & M & 78.03 & 0.03 & \begin{tabular}{c} 78.05 \\ (100.03\%) \\ \end{tabular}  & 0.04 & 2.330 & 0.0448 & 78.04 & 0.03 & 78.07 & 0.06 & 1.273 & 0.2591 \\ \cline{2-13}  & A & 0.045 & 0.064 & \ \begin{tabular}{c} 0.112 \\ (248.9\%) \\ \end{tabular}