IL6 and Anxiety: The evidence from human studies shows a close relationship between prenatal exposure to pro-inflammatory cytokines, such as TNF-α, IL-1β, IL-6, IL-17a, and ASD, schizophrenia, anxiety, depression, and ADHD (Meyer, 2013; Knuesel et al., 2014; Edlow, 2017; Cristiano et al., 2018; Ravaccia and Ghafourian, 2020; Han et al., 2021).