The potential cause for such symptoms range from many different central nervous system disorders to cranial neuropathies, neuromuscular junction disorders, orbital muscle diseases, and vestibular disorders. Thus, patients with dizziness and vertigo frequently have ocular motor abnormalities. Ongoing research.
Caffeine in Tea / March 16th, 2010. Naturally decaffeinated green tea contains about 2 milligrams of caffeine per cuppa. An average cup of green tea contains approximately 20-30 milligrams of caffeine depending upon the length of infusion. The longer the infusion time, the more caffeine in the cuppa. You may wonder why a decaffeinated tea would have any caffeine in it at all, but most do.
Corbis Images. This healthy brew can have anywhere from 24 to 40 mg of caffeine, a little less than half whatâs found in coffee. Many people report that the energy boost they get from green teaâespecially matcha, a powdered form of the drinkâis more even and mellow than whatâs offered from coffee.