San Francisco Chronicle

Both the National Institute on Drug Abuse (NIDA) and the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) identify marijuana as an <a href="https://americanaddictioncenters.org/marijuana-rehab/is-it-addictive">addictive drug</a>. Research shows marijuana users can develop problematic use patterns, or what's known as a marijuana use disorder, in severe cases after prolonged use. According to NIDA, an estimated 30% of marijuana users have some degree of <a href="https://www.drugabuse.gov/publications/research-reports/marijuana/marijuana-addictive">marijuana use disorder</a>.

One-third of young adults may be at risk of severe COVID-19, especially if they smoke or vape

July 13, 2020 at 8:37 p.m.

One-third of young people across the country may be at risk of getting seriously sick with COVID-19, especially if they smoke or vape, according to a UCSF study published Monday...

By mid-2020, Hound Laboratories plans to begin selling what it says is the world's first dual alcohol-marijuana breath analyzer.

Lab says its marijuana breath analyzer will hit the market in 2020

January 3, 2020 at 5:32 p.m.

Testing a driver for alcohol impairment is relatively easy. Decades of research show drunken driving equals bad driving. Standardized tests mark various levels of impairment. And because alcohol passes through...

WHAT OTHERS ARE SAYING

August 22, 2021 at 1:39 p.m.

Before the (Afghanistan) speech, documentary filmmaker Michael Moore wrote an open letter to Obama warning him not to become a "war president." And: "With just one speech tomorrow night you...

Reynolds on …

August 22, 2021 at 1:47 p.m.

His nude scene with Sandra Bullock: "Oddly, I was the one who walked away pregnant." Advice he received from Betty White: "My first day, she leaned over and said, 'If...

How ‘Idol’ has invigorated the dialogue on gay issues

August 22, 2021 at 1:34 p.m.

The next chapter of the same-sex marriage debate played out Wednesday night on the nation's most popular TV program, "American Idol," when Adam Lambert, a 27-year-old, gothy-looking San Diegan with...

BUBBLE BURSTERS

August 22, 2021 at 12:05 p.m.

In TV, you don't want to be on the bubble. What if you fall off the wrong side? What if it pops? What if it somehow involves NBC? Scary. Being...

‘Two Lovers’ exceptional

August 22, 2021 at 9:25 a.m.

Two Lovers 4 stars If you want to get an idea of what makes "Two Lovers" an exceptionally well-written and directed film, notice filmmaker James Gray's careful selection of detail....

TV’s top cops

August 21, 2021 at 9:14 a.m.

We may look back on 2008 as the year when two of the greatest cop series ever ended their run: "The Wire" and "The Shield." The former is perhaps the...

Best and worst first-date movies

August 22, 2021 at 6:19 a.m.

BAD The Dark Knight The most popular film of the year, and one of the most critically praised. So why is it a bad first-date movie? Too many hot actors,...

Movie moves

August 22, 2021 at 4:37 a.m.

The first-date movie may be the single most important decision in any relationship. It sets the mood for the evening and sets the tone for all dates to come. The...

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