March 4th, 2011
02:33 PM ET

This week's health quiz: tanning beds, Serena Williams, toxic meat and more!

Do you know what blood type is in highest demand? Take our quiz and find out.

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soundoff (28 Responses)
  1. cpc65

    Q:"When should infants begin drinking water?" A: If they live in Pawtucket, RI – Never.

    March 5, 2011 at 09:22 | Report abuse | Reply
    • KP

      ^^^ Or most cities north of Boston. I'm looking at you, Lynn, MA.

      March 6, 2011 at 07:56 | Report abuse |
    • LEB

      Parents need to be careful of tap water, especially in rural areas, because the high mineral content can stain teeth (and probably cause other damage). I've had my teeth professionally whitened at least 4 times because of rural city water when I was a kid, plus a lifetime of whitening toothpaste, mouthwash, and bleach strips. I've also had an inordinate number of cavities. That can be hereditary, but both my dad and I have had dental issues, and we both grew up on rural water.

      March 7, 2011 at 05:33 | Report abuse |
  2. Charles Brown

    Evidently, they believe you have to read CNN news to answer the questions.

    March 5, 2011 at 10:08 | Report abuse | Reply
  3. Matt

    Really? Never more than 8 hours of sleep? Maybe you don't. Remember friend, everybody is different.

    March 5, 2011 at 11:26 | Report abuse | Reply
    • Dana

      Wasn't the correct answer 7-9?

      March 5, 2011 at 13:09 | Report abuse |
    • Lindalou


      March 5, 2011 at 14:10 | Report abuse |
  4. Dr Dave

    Evidently, your knowledge of Serena Williams' health is a direct reflection of your knowledge about your own health.

    March 5, 2011 at 14:06 | Report abuse | Reply
    • steeve-o

      If you're a cyberchondriac, that is.

      March 5, 2011 at 14:12 | Report abuse |
  5. steeve-o

    Ok, so now, how to stop snoring....

    March 5, 2011 at 14:11 | Report abuse | Reply
    • LEB

      Get nasal strips, or lose weight, or if neither of these culprits are to blame, you may need surgery to fix the problem.

      March 7, 2011 at 05:37 | Report abuse |
  6. Luke

    Optimal sleeping time is an uninterrupted 8 hours and 15 minutes in order to feel truly rested, this is according to Dr. James A. Maas, my psychology professor at Cornell. 7 hours will not cut it no matter your age, the 7th-8th hour of sleep is where the greatest amount of REM sleep occurs, which is required to be truly well rested and the most productive throughout your day.

    March 5, 2011 at 15:07 | Report abuse | Reply
    • LEB

      Depends on your biology. Some people honestly don't need more than 7 hours of sleep. Less than that is pretty uncommon.

      March 7, 2011 at 05:34 | Report abuse |
  7. Malena

    So, just curious, wth does being able to make responsible decisions have to do with tanning beds.......Most adults who use tanning beds can't make responsible choices either, look at the douch bags on Jersey Shore...

    March 5, 2011 at 16:13 | Report abuse | Reply
    • LEB

      No kidding. I've seen plenty of adults overdo it. The best compromise here would be to limit the number of minutes you can tan and the number of times per month you can tan if the client is a minor. Of course, they can always go lay out in the sun, but that's their own dumb choice.

      March 7, 2011 at 05:36 | Report abuse |
  8. karatekiddin

    How much sleep you need? Right answer is depends on how many people you can convince to sleep with you.

    March 6, 2011 at 05:27 | Report abuse | Reply
  9. james

    Another question to the sleep section can be something along those lines..Researches have found out that the best way to fall asleep is to watch cnn .

    March 6, 2011 at 07:26 | Report abuse | Reply
    • Dan

      James ; Love it. Cable news is Hype. Jennings and Brokaw were real journalist, as was Cronkite. Good nigh David, Good night Chet.

      March 6, 2011 at 09:32 | Report abuse |
  10. Allen

    That's some great advise for people....SLEEP MORE ? Just what we need, a country that is encouraged to sleep away one third of their life.

    March 6, 2011 at 08:06 | Report abuse | Reply
    • walking dead

      As they say, you'll get all your happy shut-eye when your dead!

      March 6, 2011 at 09:21 | Report abuse |
  11. Paul, Tucker, GA

    Man you need to concentrate more on grammar and less on listening to background noises.
    Are you a member or the illiterati??? Go look it up, I'll wait or is it weight???

    March 6, 2011 at 08:43 | Report abuse | Reply
  12. Kevin

    RE: Sleep

    The average adult requires 7-9 hours of sleep, but there are exceptions. The distribution curve for sleep need is bell-shaped. Some require less (ie the short-sleepers) and some require more. The "correct" answer for you is the amount of sleep required in order to make you feel rested and alert throughout the day. Most Americans are somewhat sleep deprived during the week as noted by the tendancy to "sleep in" on the weekends.

    Sleep Well!

    March 6, 2011 at 09:32 | Report abuse | Reply
  13. nancun

    if you think any broadcaster from chet and david to brocaw, etc have any influence on what they say on the news, you are naive

    March 6, 2011 at 10:38 | Report abuse | Reply
  14. Allen

    Terrible job "trying" to market a website. Third subject I've read on CNN that you suggest the same thing....your website !
    Nice one...(not!) Time for Marketing 101? Or maybe you should start with Spelling 101?

    March 6, 2011 at 10:51 | Report abuse | Reply
  15. Morgan

    Parsley, Sage, Rosemary and Thyme? Good. Now I've got Simon and Garfunkel in my head...

    March 6, 2011 at 13:27 | Report abuse | Reply
  16. Name*leaksville

    What if you are narcoleptic? How many "good" hours of sleep do you get or need.?

    March 26, 2011 at 17:03 | Report abuse | Reply
  17. Tammie Piantanida

    Best Binoculars


    September 11, 2016 at 17:06 | Report abuse | Reply
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    February 1, 2021 at 02:24 | Report abuse | Reply

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Get a behind-the-scenes look at the latest stories from CNN Chief Medical Correspondent, Dr. Sanjay Gupta, Senior Medical Correspondent Elizabeth Cohen and the CNN Medical Unit producers. They'll share news and views on health and medical trends - info that will help you take better care of yourself and the people you love.