CNN International

CNN International @cnni

"American Idol" contestant Caroline Kole lit up the room by auditioning with one of Katy Perry’s most iconic songs – but as Kole strummed her acoustic guitar and belted the chorus, Perry turned the audition into an impromptu duet https://t.co/Y0AGuc1GZw — PolitiTweet.org

CNN International @cnni

It's no secret that sleep is important to your overall health, but a lack of sleep could have substantial effects on your heart, a new study shows. People with insomnia are more likely to have a heart attack, the researchers say. https://t.co/ahZn9OWvP3 — PolitiTweet.org