Week 1 - slow down time?

Can we slow down time? Well....I think we can slow down the perception of time. Have you ever fell down and it felt like forever...seeing each drop of water or each blade of grass flying in front of you? (Of course I've only heard of this sort of thing since I have reflexes like a cat and have never experienced such a thing) It may only take a second in everyone else's version, but seems like minutes to whoever is falling.