Things to remember. 1  Caffeine is a stimulant drug that acts on the brain and nervous system. 2  Like many other drugs, it is possible to become dependent on caffeine.  Pregnant women, athletes and children should limit their intake of caffeine.
hobby1. 1  an activity or interest pursued for pleasure or relaxation and not as a main occupation: Her hobbies include stamp-collecting and woodcarving. 2  a child's hobbyhorse. 3  Archaic. a small horse. 4  ride a hobby, to concern oneself excessively with a favorite notion or activity. Also, ride a hobbyhorse.
amateur. Etymologically, the amateur is one who loves, the connoisseur one who knows. In usage, the term amateur is applied to one who pursues any study or art simply from the love of it; the word carries a natural implication of superficialness, tho marked excellence is at times attained by amateurs.