The 38-year-old "Buffy the Vampire Slayer" star said she is not worried about ageing as she believes being happy is far more important than looks, reported Female First.
"Honestly, I don't care what they say about smiling causing wrinkles, happiness is my key to everything. Glowing definitely works from the inside out.
"That being said, water, keeping yourself moving, and sleep are definitely important," she said.