Normally when you train athletes at the highest level you get a one or two percent improvement,

What I like about it is that’s it’s all natural. It’s about training your mind and your body at the same time in the settings that count. It has the potential of being extremely powerful.

The precision of the quiet eye location often mirrors the precision required to perform well in a sport. In golf, precision of movement and precision of focus are paramount,

In golf putting, for example, it has to stay on the back of the ball through the stroke and dwell for 200 or 300m on the green, after contact. Most golfers do not do this...