01 JAN 2012 by ideonexus

 The Immune System Reaction and Overreaction

The body has a very ingenious and usually effective system of natural defence against parasites, called the immune system. The immune system is so complicated that it would take a whole book to explain it. Briefly, when it senses a dangerous parasite the body is mobilized to produce special cells, which are carried by the blood into battle like a kind of army, tailor-made to attack the particular parasites concerned. Usually the immune system wins, and the person recovers. After that, the imm...
Folksonomies: immune system allergies
Folksonomies: immune system allergies
  1  notes

It is a delicate balance, as when a mother is carrying a baby and her immune system must not be allowed to attack it, or when people get hay fever or allergies.