A state of tiredness stemming from physical exertion or processes within the body.

शारीरिक थकान

English Usage: After running the marathon, she experienced severe physiological fatigue.

Hindi Usage: मैराथन दौड़ने के बाद, उसे गंभीर शारीरिक थकान का अनुभव हुआ।

A state of tiredness or exhaustion from mental or physical exertion.

थकावट

English Usage: The fatigue from studying all night was evident in his eyes.

Hindi Usage: रात भर पढ़ाई करने से उसकी आंखों में थकावट स्पष्ट थीं।