How stress affects white blood cells?

Stress, primarily regulated by cortisol, plays a critical role in immune function:

1. Cortisol's Role: Cortisol suppresses white blood cells, key components of the immune system, under stress conditions.

2. Types of Stress: Acute stress is short-term, while chronic stress, which elevates cortisol levels persistently, can lead to cortisol resistance akin to insulin resistance.

3. Implications of Chronic Stress: Elevated cortisol levels can impair immune response, potentially increasing susceptibility to illness and health complications.

4. Factors Influencing Immunity: Chronic stress, combined with nutrient deficiencies or other factors, can compromise immune function, making individuals more vulnerable to infections and health issues.

5. Viral Impact: Viral infections can further impact immune function by inducing nutrient deficiencies or hindering vitamin D absorption, which may exacerbate health challenges.