The Conversation Daily — June 23, 2026
5 stories · June 23, 2026
In this issue
- 1
From Hormuz to the cockpit: How warfare and criminal activity undermine GPS and the race to safeguard navigation
theconversation.com · Zak Kassas, Professor of Electrical and Computer Engineering, The Ohio State University
The Strait of Hormuz is just one example of a busy shipping lane where GPS signals are blocked and faked. Asghar Besharati/Getty Images Few people want to get lost when traveling. But if there are…
- 2
Melatonin can be a safe and effective sleep aid for all ages – but product inconsistencies and improper dosing lead to real harms
theconversation.com · Sally Ibrahim, Associate Professor of Pediatrics, Case Western Reserve University
It's important to discuss overall sleep health with your child's doctor. Jacob Wackerhausen/iStock via Getty Images Plus Melatonin – a go-to sleep aid for kids and adults alike in many households in…
- 3
Heat waves can leave homes dangerously hot – even for young, healthy adults
theconversation.com · Zoltan Nagy, Professor of Building Services, Eindhoven University of Technology
When temperature soar inside homes, being outside even on very hot days can feel less uncomfortable than being indoors. Brandon Bell/Getty Images Most people know that heat waves can be dangerous.…
- 4
How everyone pays the cost for patents on seeds, and private companies get rich from keeping them secret
theconversation.com · Julie Dawson, Professor of Plant and Agroecosystem Sciences, University of Wisconsin-Madison · Kiki Hubbard, Researcher, Nelson Institute for Environmental Studies, University of Wisconsin-Madison · Paulina Jenney, Research Coordinator, Urban and Regional Food System Program, University of Wisconsin-Madison
Alan Montag, a third-generation Iowa farmer, and his son Aden load soybean seed into a planter on May 6, 2026. Scott Olson/Getty Images The United States is one of only a handful of countries that…
- 5
Everyone experiences loss and grief – but that doesn’t make it any easier to talk with kids about it
theconversation.com · Keisha M. Wint, Assistant Professor of Social Work, Binghamton University, State University of New York
Parents can support their grieving kids by using direct, clear language and not shying away from emotions. Justin Paget/iStock Photos/Getty Images When I was a school social worker, a teary-eyed…