Now here is an interesting study done on runners who self-injected a saline solution….

PERFORMANCE-ENHANCING drugs can improve a runner’s best time – even when they haven’t taken them.

A study examining the placebo effect found that endurance runners who thought they were injecting a fictional performance-boosting drug called OxyRBX improved their race time even though they had taken only saline.

Investigators from the University of Glasgow told 15 endurance-trained club-level runners that they were being given a new performance enhancing drug called OxyRBX which was said to improve oxygen delivery to the muscles in a similar way to a hormone called recombinant human erythropoietin (r-HuEPO).

The runners, who all had personal best times over 10km of 39.3 minutes on average, self-injected…read more.