One of the common approaches that we humans do take these days to address a flagging energy/stamina level as we age is to consume a coenzyme Q10 (CoQ10) supplement, believing that it will bring about benefits for us by improving our energy level. I do that myself too.
Some people do use Red Bull or coffee, but then there’ll be other repercussions involved with the overuse of those things.
Unfortunately, most people do consume CoQ10 products without even knowing what it does or how it works — they just look at the price and gauge how they feel after consuming it.