Ryan presented an overview of CPR and how it is carried out, when someone is having a cardiac arrest.  He also discussed the difference between cardiac arrest and a heart attack.   

He then went on to show us how to use the AED (Automatic External Defibrillator), and how that works in conjunction with having a heart attack. 

Finally, he gave us an overview of some basic first aid, including what to do in case of a fall, or injury that includes bleeding.