Sharon Osbourne has revealed she has the genes responsible for developing Alzheimer’s disease after undergoing tests.
The 62-year-old star says she and husband Ozzy Osbourne underwent a genome test and found that she has two of the four genes responsible for the debilitating disease.
"They test every single cell, chromosome and gene in your body; it's like a DNA test but a million times more sophisticated.
"The results show I have two of the four genes that give it to you. They're not the two major genes, but they're still there and I have them."
The former 'X Factor' judge's music mogul father Don Arden passed away aged 81 in 2007 after battling the devastating form of dementia.
Sharon admits she feels powerless in stopping the same from happening to her.
She says: "I was terrified because my dad died from Alzheimer's.
"It is the most soul-destroying disease. To see someone you love come down with it... it's wicked, it really is.
"There is nothing I can do to prevent it, nothing. People say take cod liver oil and do puzzles and things, but then I look at people diagnosed with dementia.
"My father was super active mentally, and take Margaret Thatcher, Ronald Reagan... they were all so active, and that's what really frightens me."
In November last year, Sharon revealed she'd been battling depression for 16 years.
The star, who has been taking medication for the condition, says some days she struggles to even get out of bed.
"Some days are better than others,” she said. “And some days you feel like you just want to pull the sheets over your head and just stay in that bed and not do a damn thing - except rot."