Table 1.

Regulating factors of blood pressure variability.

Vascular Factors	Stiffness of arteries; compliance of resistant artery; vascular remodelling
Neural Factors	Sympathetic, parasympathetic and baroreflex system
Humoral Factors	Renin–angiotensin–aldosterone system; endothelin
Others	Stress, emotion, exercise, circadian rhythm, climate, environment