British actress Keeley Hawes has been suffering from depression since she was a teenager.

The Spooks star has opened up about her condition in an interview with Britain's Red magazine, revealing she has struggled with a "chemical imbalance" for years and fears doctors may never find a cure for her.

She tells the publication, "I started suffering with depression when I was 17. (Therapy) hasn't worked for me. I've got a chemical imbalance that has to be managed. And then it's fine. It's not something that's cured and then goes away and you move on. You are always aware, even if it's only on a bad morning here and there, that it can escalate quickly... Life's too short for that. I wouldn't let it happen again. I wouldn't let it overtake me."