How does aluminum affect the human body?

Aluminum is a common element that can be found in various forms in the environment. While it is not considered an essential nutrient for the human body, it can be ingested through food, water, and medications. In small amounts, aluminum is generally considered safe and is excreted by the body. However, excessive exposure or intake can lead to potential health concerns. Aluminum has been linked to neurological disorders, particularly Alzheimer's disease, although the exact relationship is still a subject of debate. It can also cause bone disorders and affect kidney function. The human body has mechanisms to regulate aluminum levels, but individuals with impaired kidney function may be at a higher risk of aluminum toxicity.