Why online splurging is more likely when your brain is tired

Plus: Why Trump is hitting GOP resistance on voting bill ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌

US Edition - Today's top story: Why you let down your guard on ads when scrolling on social media View in browser

18 July 2026

US Edition

The Conversation
 

Welcome to the Saturday edition of The Conversation U.S.’s Daily newsletter.

It’s a common source of regret: You order something online when you’re tired or distracted, perhaps late at night, and when it shows up at your door, you don’t have the foggiest idea why you bought the thing in the first place.

Matt Pittman, a business professor at the University of Tennessee who specializes in consumer psychology, has long researched the curious choices people make when they shop online. In a recent project, he ran an experiment that compared people’s responses to two different kinds of Instagram ads for sustainable products: those that were “explicit” in their claims – this product is the best! – and those that were “implicit” by asking shoppers to come to their own conclusions through the facts presented.

It turns out that people respond differently to those approaches when their brain is tired – say, from scrolling. Even 30 seconds spent on Instagram had an effect, Pittman found. In those cases, bold assertions did better than ones requiring reasoning and logic. In his piece, Pittman explains why your brain works this way – and how to avoid buyer’s remorse going ahead.

This week we also liked stories about avoiding tick bites, tips on being grateful even when it can be very hard, and why brain scientists are so interested when people mix up their words.

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Helen Fessenden

Senior Economy and Business Editor

 
Even a few seconds of scrolling will tire your brain and make you more open to bold advertising claims. Money Knack on Unsplash

Why you let down your guard on ads when scrolling on social media

Matthew Pittman, University of Tennessee

When you’re tired and distracted, an online ad’s claims can be more effective in pitching a product when they’re assertive and explicit.

Republican Rep. Ralph Norman joins members of the conservative House Freedom Caucus at the Capitol in June 2026 to criticize the Senate for not acting on the Save America Act. The act is stuck in limbo between the U.S. House and Senate. J. Scott Applewhite/AP Photo

Republicans control Congress, so why is Trump’s SAVE America Act stuck?

SoRelle Wyckoff Gaynor, University of Virginia

Republicans hold both chambers and publicly back the president’s signature bill that would curtail mail-in voting and enforce strict voter ID laws. Here, a public policy and politics scholar explains why it still isn’t law.

 

How to be grateful to someone – even when you really don’t want to

Mark Schroeder, USC Dornsife College of Letters, Arts and Sciences

Struggling to feel grateful? Try thinking differently about what caused the person’s actions.

Foundations can outlive their charitable missions – and that’s a problem

Thomas Adam, University of Arkansas

The missions the foundations’ original donors champion during their lifetimes can become outdated after they’ve died.

A perfect storm of factors is driving up US produce prices, but shoppers can still save

Elizabeth Canales, Mississippi State University

US shoppers are seeing higher fruit and vegetable prices thanks to trade tensions, extreme weather and geopolitics, just to name a few reasons.

A lack of pies for a pack of lies – what spoonerisms reveal about how the brain produces speech

Karen Stollznow, University of Colorado Boulder; Griffith University

Spoonerisms can be silly and make you laugh. But linguists see something more: a rare glimpse of how the mind plans speech before we even open our mouths.

How to avoid tick bites in your yard or while hiking in the woods, and what to do if one starts feasting on you

Amanda Roome, Binghamton University, State University of New York

A tick disease researcher explains the risks and how she avoids bringing home ticks from both work and walking her dog in the woods. Lint rollers, tick checks and some types of chemicals play a role.

The Trump administration’s global campaign against ‘radical left terrorism’ is built on a national security memo without congressional approval

Melinda Haas, University of Pittsburgh

Almost a year after President Trump authorized preemptive law enforcement measures based on political or ideological beliefs, a wave of terrorism prosecutions against left-wing protesters has begun.

 

The Conversation's News Quiz

Ticks can’t run, but they have their own special way of latching onto a meal: They climb a blade of grass or a leaf and wave their legs until a deer or other food source brushes past. What’s this called?

Doing the wave
Questing
The aloha gambit
Check, please
 

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