CBD has few side effects and is considered a safe substance to take. 1  These are the known side effects of CBD: 2  Inhibition of hepatic drug metabolism/decreased activities of p-glycoprotein and other drug transporters. 3  Dry mouth. 4  Increased tremor in Parkinsonâs patients. 5  Low blood pressure. 6  Lightheadedness. 7  Drowsiness.
1 This restricts blood flow to the heart. 2  The emotional effects of stress alter the heart rhythms, which could pose a risk for serious arrhythmias (rhythm abnormalities) in people with existing heart rhythm disturbances.  Stress causes the blood to become stickier (possibly in preparation for potential injury).
Hypertensive crises can be caused by something as simple as missing a dose of your blood pressure medicine. In John's case, it was caused by alcohol withdrawal. Stroke, heart attack, kidney trauma, and eclampsia (or pre-eclampsia) can also cause hypertensive crisis. Heart or kidney failure, cocaine abuse, and an overactive or underactive thyroid are other causes of hypertensive crisis. When combined, certain medications can also cause a hypertensive crisis.