And high stress can weaken your immune system and make it difficult for your body to fight disease.

However the stress on private devotion weakened the need for a bishop or a large institutional church of the sort Blair wanted.

In others, the virus "wakes up" when disease, stress, or aging weakens the immune system.

Possible explanations are friction between the Mylar and the tube or that stress at the crumpled peaks slowly weakens the Mylar.

When physical or emotional stresses to the body weaken the immune system, the virus reactivates and spreads along the nerve fibers to the particular area of skin supplied by the involved nerve.

Since the unnerving night of August i, the uncertainties and stresses of the campaign had weakened rather than strengthened his will.

Any uncontrolled infection, stress, environment pollutants or any insult to the body weakens the immune system, and enough insults to the immune system can lead to the complete power failure that is AIDS.

The most likely reason, according to Dr. Cohen and Dr. Stone, is that stress directly weakens the immune system.

The ensuing stresses brought on by these changes further weakened the neighborhood's strength.

Lengthy stress on the metal arms would weaken the weapon, and for these beasts he needed it at full strength.