Talking about the science of drowning and details of drowning resuscitation + CPR, for lifeguards

https://us02web.zoom.us/rec/share/JDdVCdNBMpqiDhol6F_hbe5FjeidzllPlMYQH-4gIHHcBbb9OLPTZoiilSP6cduF.wt7rvrtht9Lv0lMy?startTime=1637822985000

Youtube version: