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Show HOW NERVES CONTROL HABIT System Must Be grained to Follow Called-For Motions Along a Certain Path. Those who think habit is Just something you remember that is. is purely a mental proposition, are mistaken. mis-taken. Habit Is a question of mechanics mechan-ics as much as the smooth drawing of a piston rod. Habit Is the action of nerve motions mo-tions along a beaten path. A muscle somewhero in the body contracts and a nerve moves because it cannot help It, nnd so on until the process Is complete, nnd the thing we call habit is done. There are as many of these paths In the nervous system as thero are habits. The Impression which or.e nerve center receives awakens another and tho whole path of Uio action is traveled over. The first tlmo the action Is performed per-formed tho nerve centers do not awaken awak-en their successors readily. For this reason some things are hard to learn. Everything that employs a great many nerve centers is hard to learn, becauso tho path must be worn, the nerve centers trained to act In sequence. Once they nro trained the habit Is formed. Tho second call upon them Is easier than the first, the third easier than the second, etc. |