This makes sense - the body can quickly make use of substances that it recognizes and needs. (odylique.com)
These include: inadequate Sleep; ongoing life Stress; not eating properly, or inadequate Sustenance; use of Substances like alcohol, caffeine, or other drugs; and any health issue or Sickness that increases irritability (a bad cold, headache, lower back pain). (psychotherapynetworker.org)
The ban as currently constituted could also hinder the legitimate use of these substances for medical research and therefore delay the development of new life - saving treatment. (politics.co.uk)