High school students who use both cannabis and tobacco are absent more often and get lower grades, researchers report.

A new survey identifies a clear association between certain types of childhood cancers and substance use during pregnancy, notably cannabis.

New research with mice could lead to better treatments for cancer patients' appetite disorders as well as anorexia and potentially obesity.

Understanding motives for cannabis use is important for addiction prevention and intervention, researchers say.

More older Americans use cannabis now than before the pandemic, with 12% saying they’ve consumed a THC-containing substance in the past year.

Most people who use cannabis to get a good night's rest report skipping over-the-counter or prescription sleeping pills all together.

Pregnant and recently postpartum women who have mental health disorders may be vulnerable to using cannabis to self-medicate, a study finds.

Although cannabis is legal in Michigan, doctors in the state are hesitant to authorize their patients to use it, a study finds.

Access to cannabis for managing symptoms related to cancer treatment is not equitable, according to a new study.

Cannabis use in adolescent years may create reproductive complications in women, according to a new study with mice.