Effect of Black Tea and Green Tea on the Radial Pulse Spectrum in Healthy Humans

Using radial pulse wave as hemodynamic measurements to quantify effects of acupuncture therapy for patients with traumatic brain injury and ischemia stroke

“…Changes in C6–C10 were observed after drinking tea to boost the brain circulation. 19 Brain complications were related to C6CV in patients with type 2 diabetes. 20 Changes and correlation were identified between brain waves and C6 and C9 during sleep.…”

Peripheral pulse harmonic analysis and its clinical application: A systematic review

“…Furthermore, it has been established that the specific type of food or beverage ingested can further influence these modifications. 36 , 54 , 85 , 86 Pulse wave spectrum analysis has shown that prandial (related to eating a meal) activities can lead to an increase in C2 and C4, coupled with a decrease in C5 to C9. 57 In a separate study, ingestion was associated with an increase in C1 and C2, along with a decrease in C3, C5 to C10, while defecation (the elimination of waste from the body) was linked to an increase in C4 to C8 and a decrease in C2.…”

“… 36 Ingesting coffee has been shown to increase the intensities of C3, C6, and C9, while the consumption of tea can also influence the intensities of various harmonics. 85 , 86 Overall, the effects of different substances and practices on pulse harmonics can be intricate and multifaceted.…”