United Kingdom, Sept. 14 -- Sandra Bullock lost her hair due to stress.

The Practical Magic 2 star has revealed her hair started falling out on two occasions when she was going through a tough time and she feels "very lucky" that it eventually grew back.During an interview with Jennifer Aniston for Interview magazine, Sandra explained using the Friends star's haircare range LolaVie has been a huge help.

She told the actress: "Well, the only reason I don't look like a Chia Pet is because of your stuff. I've had two bouts of stress-induced hair loss, so I'm very lucky it came back.

"That's also thanks to my German grandmother. Full head of thick, crazy hair. I got those genes."

Jennifer said of her pal: "You're one of the only women in ...