Instructional and motivation self-talk in particular gives athletes a leg up on the competition, according to sports psychologist Antonis Hatzigeorgiadis. A meta-analysis of sports psychological studies by Hatzigeorgiadis and colleagues published in Perspectives on Psychological Science found that instructional self-talk ("Keep your leg straight," "Use your core strength here") helped athletes to improve specific techniques or skills, while motivational self-talk ("You know you can do this!") helped them to succeed in strength and endurance-based tasks.
Now that testing for the synthetic stuff and blood-doping is readily available the ‘safety’ limit remains in force, causing occasional problems for those with naturally high haematocrit (the normal range is about 36-50 and all you need is a bit of altitude training or dehydration to put you over the line), though it might be a good thing in the grand scheme. The problem is people using the drugs for training so they can recover and do yet more training in the off season (or small races too early in their season to win…) when they’re less likely to be detected. The other problem is that A LOT of professionals are on something- illegal or new and not yet banned so it’s unlikely doping athletes really feel like they are ‘cheating’ as such. Just re-leveling the playing field one way or another… Sad for the other 50% of us who value our health even at elite level.