Which is an example of an environmental risk factor?

A) The patient's drinking water contains high levels of lead.
B) The patient has a strong family history of autoimmune diseases.
C) The patient carefully follows a lactose-free,gluten-free diet.
D) The patient drinks one glass of red wine every night before bed.

Environmental Risk Factor

An aspect of the surrounding environment that can potentially harm one's health or increase the likelihood of developing a disease.

High Levels of Lead

The presence of an elevated concentration of lead in the body, which can lead to toxic effects and health issues.

Autoimmune Diseases

Conditions where the immune system mistakenly attacks the body's own tissues.