COBRAS Visits

No illegal or non-prescribed drug use (other than cannabis, alcohol, and nicotine) between the start and end of the study period

No nicotine or caffeine 1 hour prior appointment time 

No alcohol or cannabis within 12 hours of lab visit

No vigorous exercise, caffeine, food, or drink (aside from
water) 80 minutes prior to the lab visits.

Try to eat a large last meal before the food cut off as you
will have to go approximately 6 hours without eating

Abstain from urinating a few hours prior to lab visits

Clean/wash hair day of the lab visits (Shampoo only, no conditioner or other hair products), also refrain from using make up products the day of appointment 

Be well-rested for lab visits; can reschedule as needed