Pop star Britney Spears, who used to be a fitness freak, says she lost interest in gym after the birth of her sons.
Spears has two sons - Sean Preston (3) and Jayden James (2) - with ex-husband Kevin Federline.
"I used to be a workout freak but after I had kids, it was a lot harder to get back into that routine. I used to love going to the gym, but as you get older and have more responsibilities you lose that kind of discipline," femalefirst.co.uk quoted her as saying.
The 27-year-old says she is taking more care of herself by ensuring she gets enough sleep.