(From What is CPR? on this site) Cardiopulmonary resuscitation (CPR) is the procedure of maintaining artificial respiration and artificial circulation in a mammal who has â¦ gone into cardiac arrest through repeating cycles of chest compressions and ventilations.
The immune system protects the body against illness and infection caused by bacteria, viruses, fungi or parasites. It is really a collection of reactions and responses that the body makes to damaged cells or infection.ancer can weaken the immune system by spreading into the bone marrow. The bone marrow makes blood cells that help to fight infection. Weakening of the immune system happens most often in leukaemia or lymphoma.
On the other hand, if your immune system is impaired, it's akin to having an open-door policy for virusesâthey'll easily take hold in your body. So the simple and short answer is, you catch a cold due to a poorly functioning immune system. There are many causes of a weakened immune system, but the more common factors are: