Which hepatitis is most commonly linked to lifestyle factors such as substance abuse?

Hepatitis C is most commonly associated with lifestyle factors such as substance abuse, particularly through the sharing of needles and syringes among intravenous drug users. The virus is primarily spread through blood-to-blood contact, which is a frequent occurrence among people who use injectable drugs. This lifestyle exposure results in a higher prevalence of Hepatitis C in this population compared to other forms of hepatitis.

Hepatitis A and E are primarily transmitted through fecal-oral routes, often related to contaminated food or water, and are not typically linked to lifestyle factors like substance abuse. Meanwhile, Hepatitis B can be transmitted through blood, but it is more commonly spread through sexual contact and from mother to child during childbirth, rather than through substance abuse alone. Thus, Hepatitis C stands out as the type directly connected to lifestyle factors related to substance use.