Category: Infection recovery

Studies suggest that your body uses a significant portion of its energy to fuel the immune response, which often explains why you feel weak and tired during an illness. To overcome this and speed your recovery, it's essential to understand **how to stop feeling weak when sick** by supporting your body's natural healing process.

The immune system's intense response to a fever can leave you drained for days or weeks, making you wonder, **how long does weakness last after a fever?** This common side effect, known as post-viral fatigue, can have a highly variable duration depending on several factors.