Jennie Garth constantly says 'I love you' to herself.

The former 'Beverly Hills 90210' actress - who lost 30 pounds following her split from husband Peter Facinelli after 11 years of marriage last March - believes positive thinking is the best way to stay healthy and happy.

She told Health.com: ''They're my favourite words, and I don't say them enough to other people, let alone to myself. When you say them, it makes you want to be gentle and kind. Even if you're mad, there's that love.''

Jennie, 40, also admitted the breakdown of her marriage was a wake-up call that she needed to start looking after her physical health.

She said: ''Now I feel stronger and more confident in my body.

''I take my kids to school in my workout clothes. I'll think, 'I'm already in my clothes now, so I may as well work out!'

''I also weigh myself every morning. If I don't, before you know it, I'll be up 10 pounds. It creeps. This morning, it was up two pounds. That's OK. But if it's up six pounds? I need to make adjustments.''