At that point i would not speak of a "conspiracy theory" anymore, more of like a unspoken truth.

EDIT:

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6327574/

>In football players, doping has recently become an important matter

>>Androgen abuse has not only a direct effect on myocardial hypertrophy and fibrosis, but can also result in myocardial infarction, arrhythmia, hypertension and dyslipidemia

>>>Herbal supplements, anti-histamines and non-steroidal anti-inflammatory drugs

https://www.theguardian.com/science/2018/aug/08/more-young-f...

But no probable connection to Doping...when the guardian sleeps...