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.
Drinking Coffee Before Blood Test Affect the Results. Drinking coffee before blood test can affect the results of tests that measure blood sugar and cholesterol levels. Coffee contains caffeine that is easily absorbed into the system at a fast rate. Caffeine can temporarily raise blood sugar levels resulting to an inaccurate fasting blood sugar (FBS) result. This happens as a result of caffeineâs stimulation of the pancreas to release insulin â hormone that regulates blood sugar level.