Have you taken up a “brain training” regimen in an effort to keep your mind sharp? There are loads of apps out there that promise if you practice their games and tasks they’ll improve how your brain functions in daily life. Florida State University cognitive scientist Walter Boot has spent years putting brain games to the test. If you enjoy playing them, he writes, that’s one thing. But what’s the evidence they actually work?

Check out some of the other great stories we published this week, including articles on the women of the Christian right, how meteorites were created billions of years ago and debate about whether billionaires’ philanthropy is an unalloyed good.

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You might just be getting better at the game you’re practicing. Malcolm Lightbody/Unsplash

Are brain games mostly BS?

Walter Boot, Florida State University

There are reasons to be skeptical, of both the quality of the evidence presented so far and the questionable assumptions that underlie claims of improved cognitive function after brain training.

Editors' picks:

Women have been the heart of the Christian right for decades

Emily Suzanne Johnson, Ball State University

Conservative Christian women have played key roles in the anti-abortion movement for decades, but their contributions are often overlooked in language that focuses on men.

The tell-tale clue to how meteorites were made, at the birth of the solar system

William Herbst, Wesleyan University; James Greenwood, Wesleyan University

Every day about 50 tons of rocks from space fall on Earth. An examination of these meteorites has inspired a new theory about how exactly these rocks formed.

My students see giving money away as a good thing but they’re getting leery of billionaire donors

David Campbell, Binghamton University, State University of New York

As the debate over what ails philanthropy heats up, the questions are going beyond whether massive charitable donations help or hurt society.

What would happen to Congress if Washington, DC became the 51st state?

Dudley Poston, Texas A&M University

A new bill aims to give the District of Columbia representation in Congress.

Is Robert Mueller an antique? The role of the facts in a post-truth era

Lee McIntyre, Boston University

What's the role of someone who, like Robert Mueller, speaks only facts in a tornado of partisan bombast? Is it a breath of fresh air or an abdication of responsibility to protect America's interests?

What the US could learn about vaccination from Nigeria

Shobana Shankar, Stony Brook University (The State University of New York)

Nigeria’s highly mobilized efforts to eliminate polio, and even tackle measles and other vaccine-preventable diseases along the way, may have lessons for the US.

The war on women coaches

Laura Burton, University of Connecticut; Nicole LaVoi, University of Minnesota

Why do female college coaches seem to be held to a different standard than their male counterparts?

Hackers seek ransoms from Baltimore and communities across the US

Richard Forno, University of Maryland, Baltimore County

Ransomware has crippled governments and companies around the world, encrypting data and demanding payment for the decryption key – though that's no guarantee of recovering the information.

May jobs report suggests a slowing economy – and possibly an imminent interest rate cut

Richard Grossman, Wesleyan University

The Fed said it's ready to act to 'sustain the expansion.' The latest jobs report suggests it may have to act soon.

School vouchers expand despite evidence of negative effects

Christopher Lubienski, Indiana University; Joel R Malin, Miami University

Research over the past few years has shown vouchers for private schools set back student learning. So why are advocates still pushing so hard to expand them?

As more developing countries reject plastic waste exports, wealthy nations seek solutions at home

Kate O'Neill, University of California, Berkeley

A year after China stopped accepting most scrap material exports, other Asian countries are following Beijing's lead, forcing wealthy nations to find domestic solutions for managing their wastes.

Brazilian universities fear Bolsonaro plan to eliminate humanities and slash public education budgets

Renato Francisco dos Santos Paula, Universidade Federal de Goias

Brazil's new president was elected on promises to radically restructure Brazil. But proposed education spending cuts and curricular changes have students and teachers marching in the streets.

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