THE FEET
BECAUSE FOOT problems are so common, and because so many of
them are the result of misunderstanding, improper care, neglect, and a kind of
fatalistic acceptance of them as inevitable and unavoidable, the feet deserve
and are here getting a special chapter of their own.
Actually, except for the
common cold and tooth decay, no human ailments are more prevalent than foot
troubles.
As many as 80 percent of adults have one kind or another in
their lifetime
And while a huge
sum-some $2 billion annually-is spent on foot powders, sprays, pads, supports,
and potions to correct foot ailments, much of the money is wasted.
ENGINEERING
MASTERPIECES
In terms of anatomical engineering, the feet are-and, indeed, have
to be -masterpieces. When you stand, your feet carry the dead weight of your
body. Walk-and if you're average, you will walk some 65,000 miles in your
lifetime-and you impose upon them a force of hundreds of tons a day. In walking
just one mile, a 150-pound man brings down on his feet a total work load of 132
tons, or 264,000 pounds.
The feet have to absorb the impact of body weight and
keep the shock from traveling up the network of nerves and joints throughout
the body. In addition, they have to balance the body, propel it, and working
against gravity gets blood flowing up the legs back to the heart.
To accomplish all this, you have 52 bones in your feet, one
fourth of the total number in the body, and they are encased in an intricate
system of some 200 ligaments, 40 muscles, and millions of muscle fibers and
blood vessels.
Foot discomfort may cause a shift in gait or change in posture. Other parts of the body, including the spine, may be thrown out of kilter to cause other troubles. Some low back disturbances, joint complaints, and even headaches have been blamed on the feet.