Sharon Osbourne was forced to take a month-long hiatus from work last year after having a "complete breakdown".
The 63-year-old star has revealed she was "put into a facility" by her family last May when her "brain shut down" on her.
She explained: "I had a complete and utter breakdown. I woke up in Cedars-Sinai Hospital and for probably three days I knew nothing. I couldn't think, I couldn't talk, I could do nothing. My brain just shut down on me.
"I was doing too much of everything. My brain just totally fused and I just couldn't cope with anything. My family put me into a facility and in this facility, the diagnose you, there's therapists, psychiatrists and you do a lot of group therapy. And I found for me that the group therapy was the best thing that I could do because there were several people suffering with what I was suffering. My head was like a whirlpool going round and round and round, and not one thought would stay in."
However, Sharon - who has Kelly, 31, Jack, 30, and Aimee, 33, with her husband Ozzy Osbourne - is now feeling much better and says she's got a "good grip" on the situation now
Speaking on her chat show The Talk, she added: "I feel now that I have got a good grip on the problem that I have and I'm in control, it doesn't control me. So I'm in control of the condition."
Tagged in Kelly Osbourne Sharon Osbourne Ozzy Osbourne