Glaucoma is a group of eye conditions in which fluid builds up in your eye causing gradual vision loss. Ocular migraine Ocular migraine usually refers to a type of migraine that can cause temporary blindness in one eye.
Increased Blood Pressure. The combination of caffeine and ephedrine can increase your blood pressure. Ephedrine and caffeine stimulate your sympathetic nervous system by increasing neurotransmitters, such as norepinephrine. This stimulant effect can increase your blood pressure by constricting your blood vessels. This is why many diet pill formulas, often called an ECA stack, contain ephedrine, caffeine and aspirin to thin your blood to offset the blood vessel constriction.
Caffeine is a mild diuretic, speeding up the urination cycle, but steals calcium which is lost through urine. Long term, heavy caffeine use leads to a rapid development of osteoporosis. 6. The effect of coffee on the cardiovascular health is controversial: some say it's good, others that it is a risk factor. Caffeine blocking adenosine constricts the brain's blood vessels.