It's good to have flaws; it's learning to love your flaws.

I've always had a job. I left home when I was 16, and you have to look after yourself.

My first ambition was musical theatre, but I realised quite early on that I wouldn't make the grade.

Hot yoga is something that I forced myself to get into. When I first did it, I thought, 'How on earth am I going to get through an hour and a half of this?' because I was so hot.

Like most, I've had an on again, off again relationship with fitness, sometimes beginning every day at the gym only to forget about my membership for months at a time.

My beauty secret is really three secrets: get eight hours of sleep, eat natural/organic food, and exercise regularly.

I've been focused on detecting nuclear terrorism at ports, in cargo containers, and I developed and built detectors that are extremely cheap and also very sensitive. My other big development is a system to produce medical isotopes that are injected into patients and used to diagnose and treat cancer.

We don't have a free market in health care. We need to connect customers up with the cost of care. And to drive innovation that way.