hey! RT @IshaSesayCNN: have to admit was only able to pull off Fonz impersonation because Sanjay came to studio to coach me! Gupta you rock!

sending good vibes..! RT @Medcastaway: Sanjay, tonight Amit gets his bone marrow transplant. Put good energy for him out there. #AmitGupta

reminded today just how much of a beast cancer can be. lost my childhood friend to metastatic breast cancer. #RIP Melissa.

answering questions about concussions. what every parent should know. livingjournalism.com #BigHits #CNN Sunday 8p

RT @Chartis_AOTG: 1 of the best vids we've seen on physiology of concussions and long term effects: from Sanjay Gupta: ow.ly/8EM2M

here's the real story of why we made the Big Hits, Broken Dreams documentary. on.cnn.com/x3MHWN #cnn sunday 8p est

RT @cnnhealth: Why @sanjayguptacnn wanted to tell the story of concussions in young players. #BigHits airs Sun 8pm ET ow.ly/8HeeA

Check out The Rampants of JH Rose. Big Hits, Broken Dreams. Sunday, 8p #CNN #BigHits twitpic.com/8bqxfx

thx bb -- it's the mutual admiration society! RT @BrookeBCNN: Always a good day when Sanjay drops by.. nicest. guy. ever.

can't believe my little girl is 5 yo today... time flies. dad is the silly scientist at school! twitpic.com/8bimat

also: sunday 8p est! RT @DanielleCNN: Omg. How cool is this?! Sanjay's doc "Big Hits, Broken Dreams" on the BIG SCREEN twitpic.com/8bawm9

congrats to my friend @aasif , the star of @todaysspecial. he calls it a tandoori comedy! amzn.to/y4YnET

about to discuss congresswoman giffords on @ac360. what does the future hold as she focuses on recovery. #cnn. 840p.

RT @AdamButterfieId: @sanjayguptaCNN RT? for CNN intern walking 12 hours a day this week to raise $$ 4 kidsWcancer #TEAMIAN

Former Penn State football coach Joe Paterno has died, his family confirms. He was 85. on.cnn.com/ckS2ec

following u adrienne! RT @TriHardAdrienne: Watching @sanjayguptaCNN then heading to the pool for my Sunday swim. #Triwithme

thx josh! getting a work-out 2day? RT @LIVESTRONGJOSH: Coffee & @LIVESTRONG board member @sanjayguptaCNN to start the day.

a new way of reading! RT @CNNeliserobyn: @danielburwen talks Operation Ajax with Sanjay @OpAjaxComic, @cognitocomics pic.twitter.com/EELUt4G0

nice rally by my wolverines, but alas... RT @tjholmes: Alright, @sanjayguptaCNN ... Let's do this! pic.twitter.com/gpOuxOWV

that's my nephew!... or niece! RT @LeenaRao: personal news to share. @guptathink and I are expecting a baby in May! lockerz.com/s/176207804