Fast fashion has a large impact on human health in many ways, including factories putting nitrogen oxide, ammonia, mercury, and carbon dioxide into the air which can irritate the respiratory tract which can cause asthma or a respiratory infection.
Fast fashion garments often contain chemicals like PFAS, azo dyes, phthalates, trihalomethane, and formaldehyde, which can cause irritation, respiratory problems, developmental issues, and increase the risk of certain cancers. This is very harmful to human health.
Also, some people will burn their unwanted clothing due to limited space. This harms our health to a great extent. From burning your clothes, significant air pollution happens, causing respiratory and cardiovascular problems for humans and animals.