... which he keeps artificially low by taking beta blockers. He is also a lifelong swimmer which is how he kept his heart rate low before the beta blockers. A

... which he keeps artificially low by taking beta blockers. He is also a lifelong swimmer which is how he kept his heart rate low before the beta blockers. Additional performance enhancing drug : botox to prevent blinking too much. Even with that, the stuff he creates is pretty amazing. It is done under a microscope and I bet it rivals physical micro-machining techniques by CNC (light exposure is obviously on a different level).