START A PETITION 27,000,000 members: the world's largest community for good

articles by: Dr. Brent

Win Prizes for Your Best Garden Recipe!

When we first conceptualized America's Oldest Largest Garden Party, the idea was to inspire as many backyard gardeners as we could. We had no idea that the little monthly contests originating from the…


Are Tattoos Toxic?

Q: Is the ink from tattoos dangerous for my health? A: There’s very little evidence that tattoo ink is hazardous to your health (unless you count the mental stress that comes from the regret of hav…


Do Cellphones Cause Brain Cancer?

Q: I talk on my cellphone a lot… am I at risk for getting brain cancer (or any kind of cancer) from my frequent use? A: Like a lot of things in science, this is a controversial subject because the …


What’s the Most Beneficial Food?

Q: If you had to chose one food that everyone should incorporate into their diet what would it be? A: This is a loaded question, as I always encourage people to eat a well-balanced diet. However, t…


Are Airplanes Really Full of Germs?

Q: Is the air in an airplane really full of germs? A: If you don’t know this by now, you should. Germs are everywhere, and if you get a bunch of people in a small space for a prolonged period of ti…


Are Rusty Pipes Dangerous?

Q: My pipes are old and I sometimes see a bit of rust in the water. Is this dangerous to my health? A: Rusty water is usually a problem with older, unlined cast-iron pipes. There are no known healt…


Are Petting Zoos Safe?

Q: Is it safe to take my kids to a petting zoo? I’ve heard horror stories about children getting sick and dying after feeding the animals. A: Petting zoos provide opportunities for children and adu…


Is the Air in Nail Salons Dangerous?

Q: Is it dangerous to breath the air in a nail salon? A: The products used in nail salons usually contain solvents and other chemicals that may have adverse health effects on workers and  customers…


Are Public Restrooms Dangerous?

Q: How concerned should I be about getting diseases from using public restrooms? A: Germs are EVERYWHERE, but you shouldn’t let that fact make you paranoid. (In fact one study showed that there wer…


Can I Overuse Antibiotics?

Q: What’s MRSA, and does it have anything to do with the overuse of antibiotics? A: Methicillin-resistant Staphylococcus Aureus (MRSA) is a mutated form of the common Staph bacteria. The mutation l…


about Dr. Brent

As an undergraduate, Dr. Brent Ridge majored in public health and environmental science, studying the way the state of the natural environment impacts our health choices. As a physician, he specializes in the field of aging. Send your health questions to Dr. Brent at

meet our writers

Megan Zehnder

Megan is an editor and producer for Care2's Healthy Living. Her main priorities are to live simply and build meaningful relationships with the people... more

people are talking

Mmmm looks delicious. I'd love to try some of these. Mayhaps I shall!

Day #3...

thank you for sharing this

i am Mary Brannon by name. Greetings to every one that is reading this testimony. I have been rejec…

Thank you for sharing.

site feedback


Problem on this page? Briefly let us know what isn't working for you and we'll try to make it right!