Not just gambling but in all activities. You needs to take a rest for a while if you feels tired because that can makes you relax your bodies and can do the other activities. If you thinks that you can't hold yourself when playing gambling because of tired, there is no other way you can do except take a rest. Many gamblers force themselves keeps playing gambling and not take a rest, that can caused them becomes emotional and that can impact their gambling activity. They can't thinks clear because of they are tired but they don't realizes about what happens to their body. That can makes them anxious with their losses and will makes them in a rush to playing gambling and lose calmness. Many bad things that can happens to them if they are tired.
that is the point. everything when we do it in a tired position will produce bad results, because our body and brain are forced to be able to do activities when at that time we should be able to rest and not do any activities. because many gamblers force themselves to gamble even though they are tired all day doing that, and in the end they lose a lot because the decisions they take are very bad since their brains are unable to process gambling at that time.
It is true and I think everyone should agree with this that it is a fact if everything is done when we are in a situation and condition tired due to other things then usually the results of our performance will not be maximized, although gambling depends on luck which makes me want to say that no matter if you are tired the name of victory can happen when you are lucky, but obviously however tired conditions will greatly affect decision making where there is a high probability for you to experience excessive emotions due to the atmosphere of the brain and mind being tired because of other things which ultimately makes you think of doing some aggressive actions based on frustration and desperation.
This is the importance of being able to manage and think rationally, which means that by having a healthy and rational mindset, I think it is small for you to force the situation just to gamble and most likely you will prefer to rest instead of gambling.