It's good for us to learn new things in life. Learning has to do with our daily activities that why I want to share this fact.
Are you feel sleepy right now? Do you have any appointment/meeting tonight? Are you going to have an overnight study? Whatever it is I know that it is important to you to finished it all. One of your opponent to accomplished it is your sleepiness.
Aside from having a coffee break let yourself being surrounded by the color yellow. Color yellow helps you focused more. Aside from that it decreases the production of hormone responsible making us sleepy.