Every country has the right to determine its own laws. And India can't afford monopolies.

If you look at the world's top 50 drugs being sold today, they are being marketed and sold by companies that did not invent them. I respect patents. I'll pay a royalty. But I shouldn't be denied the right to produce drugs for poor people at reasonable prices.

Patients are becoming aware that they're being taken for a ride by big pharma companies. They charge high prices and have never cared for India's healthcare. There are 23 million cases of cancer every year and India has a fair share of that.

I believe that life-saving, essential drugs should be freely available and the innovator should be paid a suitable royalty payment for his invention.

When I graduated, I was my biggest ever: 15 stone, with a boyfriend - my first - of just 11 stone. I was 23 years old. It wasn't just affecting my career: it was a health issue as well.

Towards the end of 2003 it was hard to get through training - and the darkest point was when a doctor told me there was a possibility I could end up in a wheelchair.

The biggest public health challenge is rebuilding health systems. In other words, if you look at cholera or maternal mortality or tuberculosis in Haiti, they're major problems in Haiti, but the biggest problem is rebuilding systems.

You must also give mental and physical fitness priority.