Inclusion Criteria:  At least 60 years of age Able to provide informed consent Cannabis Users: Must have used cannabis at least once with no negative effects, but no more than 7 times per month and not for pain, sleep, depression or anxiety in the past 6 months Cannabis Non-users: Should NOT have used cannabis in the past year and have not used regularly (e.g., more than weekly) for more than one year in the past 20 years Cannabis Users: Must be interested in using cannabis for at least one of the following complains: pain, sleep problems, depression, anxiety Non-users: Must NOT be interested in using cannabis but have at least one of the following complaints: pain, sleep problems, depression, anxiety Cannabis users: must be comfortable using edible cannabis and having a mobile laboratory (Dodge van) parked at their home Female participants must be postmenopausal Comfortable reading and writing in English Planning to stay in the Boulder/Denver area for the next month Must be comfortable with blood draws  Exclusion Criteria:  Blood alcohol level > 0 at screening (to sign consent form) Report of other drug use (cocaine, opiates, methamphetamine) in the past 90 days or fail urine screen for any of these drugs Past or current diagnosis of psychosis Current use of antipsychotic medications Heavy drinking; Alcohol Use Disorder Identification Test (AUDIT) test score >8 Inability/discomfort/unwillingness with getting in and out of the mobile laboratory van History of vertigo or falls within the past six months