What contitutes a healthy immune system?

[L. Wollner]

1.  What are the parameters by which a persons immune system
      may be judged?

2.  Is there a normal set of values? Do they vary with age?

3.  In diseases, such as AIDS, these values are comprimised or 
      below the "norm" .   Is the opposite true ...can the immune 
      parameters be above the norm (super healthy) ?

4.   What mechanisms can be used to return a persons  immune
       system to the healthy norm or above norm state (assuming
       there is no underlying disease)?

5.   What is the role of hormones with relation to the immune
       system?


     Thanks............................Lw