On Saturday 22 August 2015, the 15th World Championships in Athletics will be launched in Beijing. Until Sunday 30 August, athletes from all nations will compete, putting their muscles, as well as their heart, lungs, brain, etc. to the test.
How do muscles work? How do athletes attain such endurance? What is the brain’s role in physical ability? How do performance enhancing drugs act? What technique could help the athletes to improve their performance?