The Nervous System and the Brain - When to suspect trouble

Our entire existence as human beings depends so much on the normal functioning of our brain and nervous system that any real brain or nervous disorder or disease is a very serious matter. A sprained joint or cut foot can spell doom for an animal that depends on speed and mobility for survival; but the same injury is often not much more than a painful inconvenience to us. Impairment of our brain or nervous system is far more of a threat to our survival.

Multiple sclerosis and meningitis have been mentioned as serious disorders affecting the nerves, others are Parkinsonism, shingles, encephalitis, and brain tumors. The possible presence of one of these disorders is reason enough not to shrug off any of the following signs and symptoms: recurrent headaches, intense pain of unknown cause, tremors, numbness, loss of coordination, dizziness, blackouts, tics, cramps, visual difficulties, and loss of bowel and bladder control. Also, any person who has remained unconscious for more than a few minutes should be taken to a physician as soon as possible. This applies even when the person has regained consciousness and says he feels fine.

Our complex emotions, of course, are linked to the functioning of our brain and nervous system. A mind free of undue anxiety, guilt, and frustration functions better than a mind racked with worries and conflicts, and is a much more efficient and reliable leader of the body. See also Ch. 8, Diseases of the Muscles and Nervous System . For a discussion of mental and emotional health, see Ch. 36 .