Most important, the quality of sleep was improved, which we know in patients makes a big difference in how they perceive their pain the next day. It's a very fatiguing disease.

Anecdotally, of course, people have been using it for centuries. We've known in our clinic that patients are using street-based cannabis.

The patients' perception was that this was a drug that was going to get them high, but we didn't find that.

We found that perceived racism impacts the quality of their sleep and that disturbed sleep is related to depression. Individuals who have experienced racism could be thinking about what happened the previous day, feeling stressed about their ability to succeed when being judged by something other than merit ? skin tone or a different way of speaking. Sleep is the pathway through which racism affects depression.

It may help them go to sleep but the quality is much poorer than it would have been. As the alcohol breaks down in the system it causes arousals - they may not wake up but the depth is not the same.

For you to sleep well at night, the aesthetic, the quality, has to be carried all the way through.