What Your Smartphone Knows That Your Mother Doesn’t
Can Your Smartphone Be Used to Detect Depression?
It’s always there, in your pocket or purse or on your desk, quietly collecting information. And apparently, when it comes to depression, there’s quite a lot your smartphone knows about you.
According to a small study from Northwestern Medicine, that data from your smartphone can predict with eerie 87 percent accuracy whether you’re suffering from depression or not.
The telling signs: You spend more time on your smartphone and less time leaving the house, and you visit very few places each day.
Related: Smartphone Notifications Are Killing Our Concentration
The researchers used Craigslist to find 40 test subjects between the ages of 19 and 58, and outfitted their smartphones with an app to monitor their location and usage. The individuals took a questionnaire that measured signs of depression; half of the subjects had troubling symptoms and half did not. Using GPS, the phones tracked the subjects’ movements and locations every five minutes. The subjects also were asked questions about their mood at different points during the day.
These factors were then correlated with the test subjects’ original depression test scores. And the results were uncanny. Depressed people used their phones more often and for longer periods of time —an average of 68 minutes a day. By comparison, the individuals who didn’t show signs of depression spent only 17 minutes on theirs. Researchers attributed the increased use of the phone to task avoidance, another symptom of depressed people.
Perhaps more significant than the findings of this small study — only 28 of the 40 subjects had enough data to be studied — is the potential the researchers felt that smartphones could play in future medical diagnosis.
When loaded up with the correct sensors, the smartphone can be used to detect a person’s emotional states, and monitor moods, without the user having to utter a word. It also has the ability to offer suggestions to reinforce positive behaviors when depression is detected. The results of the study were published in the Journal of Medical Internet Research yesterday, but one conclusion was becoming increasingly evident even before the report came out: Smartphones — and the sensors they now contain — just keep getting smarter.
Tweet of the Day: The Black Hole of Big Pharma
Billionaire John D. Arnold, a former energy trader and hedge fund manager turned philanthropist with a focus on health care, says Big Pharma appears to have a powerful hold on members of Congress.
Arnold pointed out that PhRMA, the main pharmaceutical industry lobbying group, had revenues of $459 million in 2018, and that total lobbying on behalf of the sector probably came to about $1 billion last year. “I guess $1 bil each year is an intractable force in our political system,” he concluded.
Warren’s Taxes Could Add Up to More Than 100%
The Wall Street Journal’s Richard Rubin says Elizabeth Warren’s proposed taxes could claim more than 100% of income for some wealthy investors. Here’s an example Rubin discussed Friday:
“Consider a billionaire with a $1,000 investment who earns a 6% return, or $60, received as a capital gain, dividend or interest. If all of Ms. Warren’s taxes are implemented, he could owe 58.2% of that, or $35 in federal tax. Plus, his entire investment would incur a 6% wealth tax, i.e., at least $60. The result: taxes as high as $95 on income of $60 for a combined tax rate of 158%.”
In Rubin’s back-of-the-envelope analysis, an investor worth $2 billion would need to achieve a return of more than 10% in order to see any net gain after taxes. Rubin notes that actual tax bills would likely vary considerably depending on things like location, rates of return, and as-yet-undefined policy details. But tax rates exceeding 100% would not be unusual, especially for billionaires.
Biden Proposes $1.3 Trillion Infrastructure Plan
Joe Biden on Thursday put out a $1.3 trillion infrastructure proposal. The 10-year “Plan to Invest in Middle Class Competitiveness” calls for investments to revitalize the nation’s roads, highways and bridges, speed the adoption of electric vehicles, launch a “second great railroad revolution” and make U.S. airports the best in the world.
“The infrastructure plan Joe Biden released Thursday morning is heavy on high-speed rail, transit, biking and other items that Barack Obama championed during his presidency — along with a complete lack of specifics on how he plans to pay for it all,” Politico’s Tanya Snyder wrote. Biden’s campaign site says that every cent of the $1.3 trillion would be paid for by reversing the 2017 corporate tax cuts, closing tax loopholes, cracking down on tax evasion and ending fossil-fuel subsidies.
Read more about Biden’s plan at Politico.
Number of the Day: 18 Million
There were 18 million military veterans in the United States in 2018, according to the Census Bureau. That figure includes 485,000 World War II vets, 1.3 million who served in the Korean War, 6.4 million from the Vietnam War era, 3.8 million from the first Gulf War and another 3.8 million since 9/11. We join with the rest of the country today in thanking them for their service.
Chart of the Day: Dem Candidates Face Their Own Tax Plans
Democratic presidential candidates are proposing a variety of new taxes to pay for their preferred social programs. Bloomberg’s Laura Davison and Misyrlena Egkolfopoulou took a look at how the top four candidates would fare under their own tax proposals.
