John Makohen asks what each substance is doing for the person using it. This series article explores sleep, anxiety, pain, mood, timing, and sequence—and why understanding a pattern must go alongside substance-specific assessment and attention to the risks of mixing drugs.

DSM-5-TR does not list polysubstance use disorder as a standalone diagnosis, yet the label remains common in some treatment settings. Sandy Rivers explains how one broad term can obscure specific substances, trauma, mental health needs, pain, and treatment options - and why person-centered assessment matters.

Michael Cline appeared calm while traveling through Tenerife, but severe anxiety, depression, and frightening thoughts were unfolding beneath the surface. His lived-experience story reminds us that smiles and beautiful surroundings do not prove someone is okay - and that honest conversation and support matter.