There's a Scientific Reason Regular Cannabis Users Wake Up More Stressed

An Oregon State University study found regular cannabis users had higher cortisol immediately after waking than non-users.

Researchers measured saliva cortisol in 39 frequent users and 43 controls at waking, 30 minutes later, and at 9 p.m.

The usual morning cortisol surge was similar between groups, but users started the day at a higher stress-hormone level.

The finding may point to a link between habitual cannabis use and stress biology, with possible implications for anxiety and heart disease.