Which of the following is NOT a common health risk associated with lead exposure?

Enhanced vision is not a health risk associated with lead exposure. In fact, lead is known to have harmful effects on multiple bodily systems, particularly affecting cognitive and neurological functions. Exposure to lead can lead to a range of serious health problems, chiefly due to its toxicity.

Conditions such as anemia can occur because lead interferes with the body's ability to produce hemoglobin, leading to a decreased red blood cell count. Kidney damage is another critical risk, as lead exposure can impair kidney function and even lead to chronic kidney disease. Loss of hearing is also well-documented, particularly in children, as lead can affect auditory nerve function and other areas related to hearing.

In summary, the correct answer is enhanced vision because it stands out as the only option that does not reflect outcomes associated with lead exposure, while the other options are indeed significant health risks linked to lead toxicity.