Sign up for our daily briefing

Make your busy days simpler with Axios AM/PM. Catch up on what's new and why it matters in just 5 minutes.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Stay on top of the latest market trends

Subscribe to Axios Markets for the latest market trends and economic insights. Sign up for free.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Sports news worthy of your time

Binge on the stats and stories that drive the sports world with Axios Sports. Sign up for free.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Tech news worthy of your time

Get our smart take on technology from the Valley and D.C. with Axios Login. Sign up for free.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Get the inside stories

Get an insider's guide to the new White House with Axios Sneak Peek. Sign up for free.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Catch up on coronavirus stories and special reports, curated by Mike Allen everyday

Catch up on coronavirus stories and special reports, curated by Mike Allen everyday

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Denver news?

Get a daily digest of the most important stories affecting your hometown with Axios Denver

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Des Moines news?

Get a daily digest of the most important stories affecting your hometown with Axios Des Moines

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Twin Cities news?

Get a daily digest of the most important stories affecting your hometown with Axios Twin Cities

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Tampa Bay news?

Get a daily digest of the most important stories affecting your hometown with Axios Tampa Bay

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Charlotte news?

Get a daily digest of the most important stories affecting your hometown with Axios Charlotte

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Polina Shuvaeva / iStock

Scientists have long known that depression expresses differently in men and women, but new research shows that those differences are brain-deep. The study, published Tuesday in the journal Frontiers in Psychiatry, found variations in the activity of two regions of the brain associated with depression (the supramarginal gyrus and posterior cingulate) in adolescent boys and girls.

Why it matters: According to the CDC, women are almost twice as likely to experience depression as men, but men are more likely to experience chronic depression and commit suicide. Additionally, say the researchers, most research on depression focuses on women because it's more common. By understanding how the brains of men and women behave when they're depressed, scientists hope to develop better diagnosis and treatment.

What they did: The study participants were given what's called a go/no-go task. They were shown a group of words — some considered to be happy or sad — and were instructed to press a button when certain words appeared on the screen. As the participants completed the task, the researchers used an fMRI to see how each group's brains responded to the happy or sad words.

Limitations:

The study has a fairly small sample size — 82 depressed females between the ages of 11 and 18 and 24 healthy females in the same age bracket. But they had difficulty recruiting males, perhaps because of the lower prevalence of depression, so their study included only 24 depressed males and 10 healthy males.

Go deeper

10 hours ago - Politics & Policy

Biden explains justification for Syria strike in letter to Congress

Photo: Chris Kleponis/CNP/Bloomberg via Getty Images

President Biden told congressional leadership in a letter Saturday that this week's airstrike against facilities in Syria linked to Iranian-backed militia groups was consistent with the U.S. right to self-defense.

Why it matters: Some Democrats, including Sens. Tim Kaine (D-Va.) and Chris Murphy (D-Conn.) and Rep. Ro Khanna (D-Calif.), have criticized the Biden administration for the strike and demanded a briefing.

12 hours ago - Health

FDA authorizes Johnson & Johnson's one-shot COVID-19 vaccine for emergency use

Photo: Illustration by Pavlo Gonchar/SOPA Images/LightRocket via Getty Images

The Food and Drug Administration on Saturday issued an emergency use authorization for Johnson & Johnson's one-shot coronavirus vaccine.

Why it matters: The authorization of a third coronavirus vaccine in the U.S. will help speed up the vaccine rollout across the country, especially since the J&J shot only requires one dose as opposed to Moderna and Pfizer-BioNTech's two-shot vaccines.

Updated 12 hours ago - Politics & Policy

Coronavirus dashboard

Illustration: Annelise Capossela/Axios