Plus: Bell-to-bell cell bans – do they work? ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌

US Edition - Today's top story: Exposure to everyday chemicals can add up – a toxicologist offers simple steps to reduce your dose View in browser

6 July 2026

US Edition

The Conversation
 

Top headlines

Lead story

As a longtime health and medicine journalist, I think a lot about how contaminants in everyday products might affect my and my family’s health. After reading that chemicals like phthalates can leech out of plastic packaging and containers, for example, I switched out most of my household’s plastic food storage containers for glass – and we no longer put the remaining plastic ones in the microwave.

But I’m well aware that actions like these only accomplish so much, given the enormous range of substances people are exposed to in the course of modern life. So when toxicologist Brad Reisfeld at Colorado State University proposed an article explaining the overlapping effects of these daily environmental exposures, I was excited to take him up on it.

There’s no way any of us can live a “chemical-free” life, Reisfeld writes. “A more practical goal is to reduce unnecessary and repeated exposures when doing so is easy and inexpensive, and does not create new problems.”

I’ve already started implementing Reisfeld’s highly practical suggestions, which focus on the big picture rather than specific products. I hope you’ll find them helpful too.

[ Understand what’s going on in Washington and around the world. Get our Politics Weekly newsletter. ]

 

Alla Katsnelson

Associate Health Editor

 
People are rarely exposed to chemicals one at a time. PeopleImages/iStock via Getty Images Plus

Exposure to everyday chemicals can add up – a toxicologist offers simple steps to reduce your dose

Brad Reisfeld, Colorado State University

There’s no such thing as a ‘chemical-free’ life, but some simple steps can help you minimize exposures to daily chemicals.

International

The ‘navalization’ of economic warfare sees trade routes become zones of force rather than rules

John Calabrese, American University

With the declining power of financial sanctions, many countries are now physically boarding ships to enforce scattershot rules of trade, conflict and commerce.

Education

Florida’s school choice program offers universal vouchers but cannot show systemwide academic improvement

Kendall Deas, University of South Carolina

What has the Sunshine State learned from 27 years of school choice?