However, anecdotally I’ve found that whether you think you can do something or whether you think you cannot—you are correct. That is to say, I feel like admitting to the biological truth actually becomes a self-fulfilling prophecy which causes me to fall to my biological default.
However, if I reject that biological “truth”, I will more often find myself empowered by the notion that I can do anything I set my mind to, whether it be drugs or going for a run.
It’s the classic “mind over matter” phenomenon. Your fundamental beliefs can override your biological defaults, so I think it’s very important to regulate and review your beliefs.