Causes of Shingles
Shingles is caused by the reactivation of the varicella-zoster virus. After chickenpox, the virus remains inactive in the central nervous system, specifically in the nerve ganglia. At certain times, the virus can reactivate due to factors such as:
- Weak Immune System : People with weakened immune systems, such as those with HIV/AIDS, cancer, or who have received treatments such as chemotherapy or radiation therapy, are more likely to develop shingles.
- Stress and Fatigue : Chronic stress or extreme fatigue can weaken the immune system, increasing the risk of virus reactivation.
- Aging : As we age, our immune systems naturally weaken, which explains why shingles is more common in people over 50.
- Chronic Diseases : Diseases such as diabetes or autoimmune diseases