The simple answer is that snakes shed their skin because they are just like all other animals. All animals shed their skin â even you! In mammals, especially humans, this is an ongoing process that's rarely noticed. Skin shedding in reptiles is different. Instead of an ongoing process, reptiles shed skin periodically.
According to the International Liaison Committee on Resuscitation guidelines, CPR involves chest compressions at least 5 cm (2 in) deep and at a rate of at least 100 per minute in an effort to create artificial circulation by manually pumping blood through the heart and thus the body.
Steps of CPR. CPR (cardiopulmonary resuscitation) is pushing down on a person's chest and breathing into his or her mouth. It is used in emergencies when someone's heart stops beating, or when he or she is not breathing normally (may be gasping for breath) or is not breathing at all. CPR works to move blood to the person's brain to help prevent brain damage. CPR can help keep someone alive until a health professional arrives.