Preventing
cancer: some steps you can take
Cancer
is the second leading cause of death and many of us will have had to deal with
it before our time is up. That doesn’t mean we can’t live a long and otherwise
healthy life. Cancer survival rates are higher than ever thanks to timely
screening tests, early diagnosis and sophisticated therapy.
Genetics plays only a small role in cancer. The latest studies
show that only 10 to 15 percent of cancers “run in the family.” The vast
majority are due to things that we do to ourselves and it’s never too late to
change lifestyle habits. Just these few might help you to avoid the “Big C.”
Tobacco is by far the single most important avoidable
cause of cancer. Lung cancer kills more women than breast, uterine and ovarian
cancer combined. Tobacco-related cancers include that of the mouth, tongue,
larynx, esophagus, pancreas, stomach, bladder and uterus. What a list! Some of
these might not seem to be related to smoking but consider that the
cancer-causing chemicals (carcinogens) in tobacco smoke get into the blood
stream where they can affect susceptible tissues, including the breast. Quitting
smoking lowers one’s risk of lung cancer but the threat is always there. The
take-home lesson: don’t start smoking and if you do, quit today.
Obesity is a major factor in cancer for several reasons.
Fat cells don’t just sit there; they produce inflammatory chemicals that
promote cancer. Fat cells also make estrogen, a factor in cancer of the breast
and uterus. Altogether there are 14 different kinds of cancer that are
associated with obesity. There may be more, for we are only about 40 years into
the obesity epidemic that has been accelerating and cancer has a long lag time.
Cancer of the colon is second only to that of the lung.
Some of it is due to inherited factors but most is not. There is a strong
association between eating red meat and colon cancer; barbecuing increases the
risk. Conversely, persons who have a high intake of leafy green vegetables
lower their risk of cancer. The lesson is pretty clear: cut back on red meat
and eat more veggies, especially broccoli, Brussels sprouts and cabbage. I know
what you’re thinking but I’m only the messenger.
Quitting smoking, losing weight and trading steak for
broccoli are real challenges but so is losing a lung, getting used to a
colostomy or undergoing radiation and chemotherapy.
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