Table 1.

Summary of the reported effects of anodal tDCS and their similarities with those of the classes of prohibited substances presently included in the “Prohibited List” of the World Anti-Doping Agency.

Effects produced by anodal tDCS	Classes of substances of the WADA List showing similar effects
Increase of attention span	S6
Enhancement of memory and improvement of cognitive ability	S6
Improvement of sport performance through the “motor learning”	S6
Enhancement of muscular strength	S1, S2, S3
Attenuation of fatigue	S1, S4, S7, S9
Increase of endurance time and reduction of recovery time	S1, S2, S4, S6
Induction of changes on mental state and concentration	S1, S6 (S8?)