But have you ever wondered what's actually going on in your brain when you have anxiety? A lot of it comes down to chemicals.

It can be genetic; in fact, in most cases in which symptoms show up before age 40 ... Opioids, however, are very addictive, so they may only be prescribed for a short time and for those with extreme ...

The study also had strict criteria, excluding some groups, such as those taking opioids for knee pain. One in seven ...