Otolaryngologists and ENT physicians are the same. ENT=Ears, Nose, and Throat - Oto=ear, laryng=throat (the nose, or rhino, was dropped some years ago). Otolaryngologists go through 1 year of general surgery training and an additional 4-5 years of specialty head and neck surgery.
But many popular brands actually contain considerably less than an old-fashioned cup of black coffee. An 8.4-ounce serving of Red Bull, for instance, has a relatively modest 76 to 80 mg of caffeine, compared to the 95 to 200 mg in a typical cup of coffee, the Mayo Clinic reports.
How much caffeine is there in a cup of coffee depends on how strong you make it. Generally, an 8oz cup of coffee contains about 95mg of caffeine. A cup of your regular instant coffee provides you with 6mg of caffeine â that is when you add 2 teaspoons of instant coffee crystals into 8oz of piping hot water. When you get a shot of espresso added to your coffee, you get another 65mg of caffeine from every ounce of espresso.