Serotonin levels do not correlate with depression

Antidepressants are one of the most popular drugs in the US. According to the CDC, during 2015–2018, 13.2% of adults used antidepressants. Prozac (fluoxetine), Paxil (Paroxetine), Celexa (Citalopram), and Zoloft (Sertraline) are popular Selective Serotonin Reuptake Inhibitors (SSRI) used to treat depression. The idea behind using the SSRIs came from the serotonin theory of depression,…