There are hurdles to overcome in sport and in life. Sport is a very valuable learning ground for how to live your life in the best possible way.

As a youngster, I enjoyed sport and my ambition was to be a great sportsman.

If athletes are found to have taken performance enhancing drugs, then they should be banned for two years, even if they are British.

The reception and the welcome home was quite overwhelming but an indication of how much the Welsh people valued my winning in the Olympics - it was a great memory.

Leisure activities such as contemplation, going for a stroll or a bike ride boost our overall health, wellbeing, and creativity.

People have criticized me for seeming to step out of my professional role to become undignifiedly political. I'd say it was belated realization that day care, good schools, health insurance, and nuclear disarmament are even more important aspects of pediatrics than measles vaccine or vitamin D.

There is no doubt that the participation of women in the workforce is a serious productivity boost, but to enable this ambition, there must be investment in care - child care, aged care, disability care, health, and education - which are essential social support structures to enable women to work.

We all recognize that in recent decades, many important achievements have helped create a cleaner, healthier environment, yet our national needs in environmental health are not being fully met.