Can anyone tell me what causes high blood pressure?

Nobel prize: For 90%, the cause is unknown and called "essential hypertension." anyone who discovers the cause will receive the nobel prize! the other 10% is attributed to: all forms of renal disease, renal artery stenosis, adrenal tumors, coarctation of the aorta, cushing's disease, obstructive sleep apnea, pheochromocytoma, licorice, and artifactual measurements.