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Wikenigma - an Encyclopaedia of Unknowns Wikenigma - an Encyclopaedia of the Unknown Science

Facial blood flow oscillation

Experimental data (starting from 1995) have shown that the volume of blood flow in human faces tends to oscillate - rising and falling once every ten seconds or so.

The reasons are unknown. There are currently two theories :

1) That it stems from the blood pressure regulation mechanism

2) That it's caused by 'vasomotion' (contraction and expansion of blood vessels)

See: Phase Velocity of Facial Blood Volume Oscillation at a Frequency of 0.1 Hz Frontiers in Physiology, 28 Jan. 2021

Note : The highly complex mechanism which controls blood pressure is itself poorly understood. See Hypertensionplugin-autotooltip__plain plugin-autotooltip_bigHypertension

Only 5 -10% of cases of hypertension have causes which can be clearly identified (e.g. narrowing of the arteries). Put another way, of those patients who have been identified as having abnormally high blood pressure, physicians will not be able to pinpoin…


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