Why is the left hand considered the dirty hand?

The perception of the left hand as "dirty" in various cultures often stems from historical and social associations. In some traditions, the left hand is linked to negative connotations, such as bad luck or evil, while the right hand is associated with cleanliness and favor. Additionally, in certain cultures, the left hand is traditionally used for personal hygiene tasks, reinforcing the stigma. This dichotomy highlights how cultural beliefs can shape perceptions of bodily actions and their associated meanings.