What are some things that can make a person valnerable to illness?

Several factors can make a person vulnerable to illness, including a weakened immune system due to chronic diseases, malnutrition, or stress. Environmental factors such as pollution and lack of access to clean water can also contribute to susceptibility. Additionally, lifestyle choices like smoking, excessive alcohol consumption, and a sedentary lifestyle can increase the risk of developing various health issues. Genetics also play a role, as some individuals may inherit predispositions to certain illnesses.