Jack Osbourne Has Multiple Sclerosis

Osbourne with wife Lisa Stelly, at an event for MS on May 19

Jack Osbourne has been diagnosed with multiple sclerosis, he tells WHO exclusively.

Just two weeks after he and fiancée Lisa Stelly welcomed daughter Pearl Clementine, Osbourne, 26, was dealt the shocking news. In an exclusive, sit-down interview with WHO, Jack and his mother Sharon open up about their emotional ordeal.

"I was just angry and frustrated and kept thinking, 'Why now?' " Jack tells WHO. "I've got a family and that's what's supposed to be the most important thing."

Osbourne, out with daughter Pearl Clementine, on May 9

Multiple sclerosis is a disease that affects the central nervous system – the brain and spinal cord – and can cause problems with muscle control and strength, vision, balance, feeling, and thinking.

MS differs in each case, with some people going through life with only minor problems and others becoming seriously disabled. Most people fall somewhere between those two extremes.

Click [www.health.com/|here] for more information about multiple sclerosis.

For all the details of Jack's shocking diagnosis, a candid interview with Jack and Sharon, and more on how the famous family is coping, pick up next week's issue of WHO, on newsstands Friday