I'm 19. i'm worried about cancers and brain tumors? chances of it and symptoms? i want a long life. how can i live to old age? no cancer history.

Are you a worrier: in general? Do you tend to focus time or energy on health related fears? The chances of a person developing cancer during their lifetime varies greatly depending on which cancer it is & possible risk factors. Aim for daily exercise, 8 hours of sleep per night & good nutrition w 5 servings of veggies & 4 of fruit per day. Try tai chi, yoga, Qi Gong or progressive muscle relaxation.

Think happy thoughts: Worrying is the opposite of what will help you live long and be healthy. There are numerous things but the most effective are, eat a whole food, organic diet. Limit red meat intake. Eat wild fish and be sure they are not from regions with radiation or species known to have contamination with heavy metals or PCBs. Don't drink alcohol, don't smoke, don't use drugs, meditate, exercise, get outdoors.

No easy answer.: There's no simple recipe for longevity. Common sense measures like buckling your seat belt, not smoking, exercising regularly and maintaining a healthy weight are the basic ingredients. However, I also want you to live a HAPPY life. I sense that you have an underlying anxiety disorder. Part of the recipe for a long AND happy life is treatment for your anxiety. Please get help.

Becoming an adult: Part of growing up is accepting uncertainty. You can greatly decrease your risk of dying of cancer by avoiding tobacco. Occasional colonoscopy when indicated is also helpful, and reporting any lumps / bumps quickly to your physician. Don't abuse alcohol or drugs. This being said, there's no guarantee how long you'll live and you don't have full control. Live richly and cherish whatever you get.