In this chapter of The Brain Rules, Medina explains how sleep is a huge part of your day. Loss of sleep has major impacts on your ability to do simple actions. Sleep helps you pretty much get through your day, simple tasks such as walking, attention, and even remembering things are affected by sleep. Without sleep, your brain is not working hard, in fact you are most likely making more mistakes throughout the days, whereas someone who gets sleep can apply their mind to whatever comes their way, since it is able to perform tasks relatively easy. I personally lack sleep some days, I tend to fall asleep everywhere, my attention is elsewhere, and my reactions are slow. With this chapter the importance of sleep is now to me pretty significant. I plan to try and get some more sleep, so that i could function better during the day.