Nick Cannon. (Mike Coppola/GETTY IMAGES)

The 31-year-old actor will no longer host “Rollin with Nick Cannon” on New York City radio station 92.3 NOW. On the show Wednesday, Cannon said he was hospitalized over the weekend after blood clots were discovered in his lungs. Doctors also found out a ventricle in his heart was enlarged.

Cannon is married to singer Mariah Carey. The couple have twins, Roc and Roe.

“Under doctor’s orders, I have been asked to put my health first and cut back on some of my professional commitments in order to allow my body to get the rest that it needs to keep up with the demands of my multi-tasking schedule,” Cannon said in a statement announcing his plans to step down. “Even Superman has to sleep.”

Cannon, the host of NBC’s “America’s Got Talent,” will continue to work on his syndicated show, “Cannon’s Countdown.”

This has not been an easy year for Cannon so far. He was hospitalized in early January during a vacation in Colorado for, what he called, “mild kidney failure.” He was released later that month and recently told his new “Talent” co-star, Howard Stern, he was feeling much better. But things apparently took a serious turn on Friday, when Cannon says he began feeling back pain and went to the hospital, where his new medical issues were discovered.