viral myalgia

Why Do My Muscles and Joints Feel Heavy and Weak When Waking Up With the Flu?

Why Do My Muscles and Joints Feel Heavy and Weak When Waking Up With the Flu?

1. Introduction The heavy, weak sensation in the muscles and joints upon waking with the flu is a direct result of the immune system’s aggressive chemical response to the viral infection. When the influenza virus invades the respiratory tract, the body releases powerful inflammatory proteins called cytokines to halt the viral replication. While these cytokines … Read more

What Causes Profound Fatigue and Joint Aches After Recovering From a Common Cold?

What Causes Profound Fatigue and Joint Aches After Recovering From a Common Cold?

1. Introduction Experiencing profound fatigue and joint aches after recovering from a common cold is a recognized clinical state known as post-viral fatigue syndrome. This prolonged physical exhaustion results from sustained immune system activation, where circulating inflammatory cytokines continue to act on the central nervous system and musculoskeletal tissues even after the primary viral pathogen … Read more