There are many things that can cause or
increase the risk of different types of cancer.
For example, carcinogens (cancer-causing
substances or exposures) can include things like
cigarette smoke, radon gas, UV light, many
laboratory chemicals and chemicals in gasoline,
cleaning products, even naturally occurring
chemicals in some foods.
Although many things are classified as
carcinogens, it doesn't mean that they
cause cancer in all people, or in any dose, or at
any age. Cancer occurs most frequently in older
people because the genetic integrity of human
cells degrades as people accumulate carcinogenic
damage to their cells throughout their lifetimes.
Lifestyle choices can reduce the chances of
getting cancer at a young age, including
maintaining a healthy body weight, eating ample
amounts of fruits and vegetables. Even with
healthy lifestyle, however, sometimes cancer can
strike, and this can be very difficult to deal
with, especially if ourselves or a loved one is
affected. This is especially true if the person is
You asked why cancer has to exist. Well,
cancer doesn't exactly HAVE to exist in the world,
except that our cells and our bodies just aren't
that permanent, and they accumulate damage over
time that is inevitable. If something else doesn't
kill us first, eventually cancer is often the
thing that does.
The bright side of the story is that these
days, people are living long enough for cancer to
be a major cause of death as opposed to facing
deaths by the many illnesses that used to kill
people at much younger ages. Additionally, many
cancers are treatable if caught in time.
You asked if there is a way to get rid of
cancer forever. I don't think so any time soon.
It's almost like solving the problem of living
forever. I do, however, think that the age at
which the average person dies from cancer will
steadily increase as medical detection and
treatments continue to improve.
If you are experiencing cancer in your family
now, I wish the best for you. My Mom had cancer,
which was luckily caught early and was treatable,
and she recovered. It reminded me, though, that
you never know when you might lose somebody, so
it's important to be good to the people who love
you and tell them often that you love them back.