Happiness and your health has been the subject of many of Dr. Gupta's appearances on CNN this week, leading up to his special report "Happiness and Your Health, The Surprising Connection" (Sunday, 10 p.m. Eastern).

But in addition to what's on TV, our weekly podcast Paging Dr. Gupta which I just posted on iTunes and CNN.com , has more information on what it takes to be happy. Did you know that a Pew Research Center survey found that being religious or Republican makes it more likely that you'll be happy? And if you're in your 20s as I am, chances are you're not as happy as people in other age groups! I happily disagree, but the studies actually show that men in their 60s are the happiest.

You'll also find great information and some really good pictures of happy people at CNN.com/Happiness, and you can even take a survey on what makes you happy.

Today is day three of the blog, and so far you've sent us some excellent comments, so keep them coming! Please note that although we'll post as many responses as possible, not every response will appear.