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MYTH: You don’t need to worry about cancer if no one in your family has had it.
Only 5% to 10% of cancers are hereditary (passed down by a family member). The majority of cancers are caused by genetic changes that occur throughout a person’s lifetime. These changes, or mutations, are caused by factors such as tobacco use, too much ultraviolet (UV) radiation from the sun, and exposure to certain chemicals. However, the likelihood that a single mutation will cause cancer is small. That is one reason why cancer is more common in older people –a number of mutations have had the chances to build up throughout their life.
MYTH: If you have a family history of cancer, you will get it too.
Although having a family history of cancer increase your risk of developing the disease, it is not a definite prediction of your future health. In fact, an estimated 4 out of 10 cancers can be prevented by making simple lifestyle changes, such as eating a balanced diet, maintained a healthy weight, exercising, limiting alcoholic beverages, and avoiding tobacco products. Additionally, doctors may recommend that some people who have inherited a genetic mutation that puts them at high risk for cancer have surgery or take medication, known as prophylactic treatment, to further reduce the chance that cancer will develop.
MYTH: Positive thinking will cure cancer
Although a positive attitude may improve your quality of life during cancer treatment, there is no scientific evidence that it can cure cancer. Placing such importance on attitude may lead to unnecessary guilt and disappointment if, for reasons beyond your control, your health does not improve.
MYTH: Hair dyes and antiperspirants can cause cancer
To date, there is no conclusive scientific evidence that these items increase the risk of developing cancer. Some studies have suggested that their dyes used before 1980 could be linked to an increased risk of developing non-Hodgkin lymphoma, but the unsafe chemicals have since been removed from hair dye products. There is limited and inconsistent evidence that hair dye can increase the risk of other types of cancer. Additionally, there is some evidence that the skin may absorb the aluminum –based compounds that act as the active ingredient in antiperspirants. These compounds are known to cause hormonal changes, which has led some to believe that antiperspirant could contribute to the developed.
