You should be careful with adrenaline drinks - such things borrow energy from the body, as if on credit. And all loans, as you know, are given with high interest.you need to take adrenaline drinks they will help you stay awake and relieve fatigue there should always be food in front of you to eat because the brain needs to think it gets tired and you can’t do without food
I personally can't go past 5 hours, it's extremely tiring for me, and I start playing all the wrong hands and I can't pay attention to the plays anymore. How is it for you? what do you do to be able to maintain long tournaments?