Firefighters are known for their bravery. Their job description includes risking their own safety for the sake of others. But it turns out that forging into raging fires isn't the only danger firefighters face. Frequent exposure to smoke and chemical fumes puts them at higher risk of certain diseases, including bladder cancer.

A research team tested over 1,000 active and retired firefighters. Ninety-nine of the firefighters exhibited warning signs of bladder cancer, and two were diagnosed with the disease. The overall incidence rate of bladder cancer for firefighters was 36 of 100,000 -- which is higher than the general population.

Check out AOL Body's quiz to see if you're doing what you can to avoid cancer.

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Guys, are you getting your greens? No, I'm not talking about the type of M&Ms that, in a hard-to-forget TV commercial from the mid 1980s, reportedly helps a batter take the ball down...town. Rather, I'm talking about the type of greens that are far less tasty than a piece of candy-coated chocolate, but vastly superior in terms of health. Greens, man. You know, broccoli, cabbage, spinach, etc.? You're right, I should have just mentioned Popeye from the start.

Nevertheless, a study out of the Roswell Park Cancer Institute in Buffalo, New York shows that as little of three daily servings of raw greens can slash your risk of bladder cancer by as much as 40 percent. What's more, you may be surprised to learn (I know I was) that bladder cancer is actually the fourth most common form of cancer in men.

The next time you're at the supermarket, don't forget to stop by the produce section and go green!!

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In a new study coming out of Barcelona, data shows that chlorinated water can increase the risk for bladder cancer. Not only drinking it, but also bathing and swimming in it was shown to be enough exposure. The cancer risk comes from by-products (called TMH) produced by the chlorine that are ingested, inhaled, or absorbed into the body. The risk is greatest from showering and swimming in chlorinated water, with a smaller risk (but there nonetheless) from drinking it. Researchers believe that absorbing the by-products through the skin or lungs is more toxic because then they aren't processed and detoxified through the liver.

This is concerning because chlorine is everywhere, and now I'm wondering what the TMH levels are in my city's water.

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