Why is fever dangerous to human being?

Fever is dangerous because it indicates an underlying infection or illness, which can lead to complications if not addressed. High fevers, particularly in vulnerable populations like young children or the elderly, can cause dehydration, seizures, and even brain damage if they exceed critical temperatures. Additionally, prolonged fever can strain the body's systems, leading to increased metabolic demands that may overwhelm the body’s ability to cope. Effective management is essential to mitigate these risks and address the root cause.