Kratom use has been linked to impaired cognitive function and motor skills, increasing the risk of accidents. Including it in Schedule I would help reduce these hazards.

Mohammad Yusoff, Nurul & Suhaimi, Farah & Vadivelu, Raja & Hassan, Zurina & Rümler, Anne & Rotter, Andrea & Amato, Davide & Dringenberg, Hans & Mansor, Sharif & Navaratnam, Visweswaran & Müller, Christian. (2014). Abuse potential and adverse cognitive effects of mitragynine (kratom). Addiction Biology. 21. 10.1111/adb.12185.