The effect of heavy metals on human health is profound and often detrimental. Exposure to metals like lead, mercury, and cadmium can lead to various health issues, including neurological disorders, kidney damage, and weakened immune responses. Heavy metals can accumulate in the body over time, causing toxic effects that can manifest in multiple organ systems. Long-term exposure is linked to conditions such as developmental delays in children and increased risk of chronic diseases. Understanding these impacts underscores the importance of monitoring and regulating heavy metal exposure in the environment.