How do you know when it's time to wake up or go to sleep? More powerful than any alarm are your circadian rhythms. In this animation we take a look at how these rhythms work and what controls them, inspired by the TeenSleep project being carried out at the University to look at how later start times at school might affect achievement.
To find out more about the science behind the animation visit http://www.oxfordsparks.ox.ac.uk/what-makes-you-tick.
We've also created a set of teaching resources for secondary school science, which can be found here: http://oxfordsparks.ox.ac.uk/content/teaching-resources.
Our website also has over 400 resources to explore so visit www.oxfordsparks.ox.ac.uk and join in the conversation by following on Twitter (@oxfordsparks) and Facebook (OxSparks).