There's zero evidence that EPO doping has decadal positive effects. EPO increases your red blood cell count - temporarily. Testosterone (not Valverde's dope of choice as far as we know) may be different - maybe not.
The drug of choice for cyclists over the past decade has been EPO, and it paints a grimmer long-term picture. EPO appears to produce no structural improvements even in the short run. It does not affect capillary density, muscle size, or muscle fiber type. It does not produce the sort of benefits that last.
https://www.velonews.com/training/an...hancing-drugs/
This is an example of modern social media discourse. You get to make $hit up.
Tons of guys doped during Valverde's early years. Why are all the rest long-retired?