You will always see foam rollers lying around the gym and wonder what they're there for and what they do. Not just gym members but many athletes, yoga enthusiasts and physios also utilise them for their many benefits and ability to improve their body's wellbeing.
You have probably heard of the RICE (Rest Ice Compression Elevation) protocol for injuries. Ice, in fact does not help the healing process and will likely delay healing and recovery from injuries. This is likely at odds with what you have been told throughout your life.