Your smartphone may be able to notify you when you are drunk

Researcher and emergency physician Bryan Suffollet investigated 22 adults aged 21 to 43 and gave volunteers a vodka drink containing enough alcohol to produce a breathing concentration of 0.2%. In the United States, the legal drunk driving limit based on blood alcohol levels per gram of alcohol in 100 ml of blood is 0.08%.

Participants analyzed their breath alcohol levels for 1 hour to finish alcohol, then hourly for 7 hours, then walked linearly for 10 steps, then turned around and returned 10 steps.

The researchers secured the smartphone to the participant’s waist with an elastic belt. Next, the app was used to record accelerometer data and measure the smartphone’s acceleration, left-right, up-down, and back-and-forth movements while participants were walking.

About 90% of the time, researchers were able to identify when a person’s blood alcohol limit exceeded 0.08%, using changes in gait detected by phone sensors and apps.

“This controlled lab study shows that our phone helps identify the “signature” of alcohol-related dysfunction.” At the University of Pittsburgh School of Medicine when the study was conducted. , The Department of Emergency Medicine, Suffollet Medicine, now at Stanford University School of Medicine, said in a statement.

“We have powerful sensors that we carry everywhere we go,” said Suffollet. “We need to learn how to use them to best serve public health.

“I lost my best friend in a drunk driving crash at college,” Suffolett added. “And as an emergency physician, I took care of a large number of adults who had injuries related to acute alcoholism. So for the last 10 years, I’ve been working on digital interventions to prevent deaths and injuries related to excessive alcohol consumption. Dedicated to testing.”

Alcohol, a central nervous system depressant, reduces brain function and impairs thoughts, muscle coordination, and reasoning. This can affect a person’s ability to drive the vehicle safely. According to the National Highway Traffic Safety Administration, more than 10,000 people have died in a drunk driving crash in the United States.

The researchers, published in a journal on alcohol and drugs on Tuesday, “provide the basis for future research on remote detection of alcohol-related disorders using smartphones,” a proof-of-concept study. I say.

The team plans to keep participants mobile in their hands and pockets for further research.

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