Once a year it is best to have kidney, liver or colon cleanser and detoxify everything out from the body. To much toxins are harmful if you decide to get them make sure you get organic kinds.
Eat healthier and have less junk food in a day.
If you go to a endocrinologist and have history of cancers in your family talk to your doctor about it and ask to test your Iodine levels. Iodine is a very important thing in the body if you are difficient and depending on how defficient you are your risk of having cancer is more. You can ask your doctor to test your Iodine levels and be on the safe side.