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The Latest Breaking News from SciLine

High-speed rail moves millions throughout the world every day – but in the US, high cost and low use make its future bumpy

High-speed rail systems are found all over the globe. Japan’s bullet train began operating in 1964. China will have 31,000 miles (50,000 kilometers) of high-speed track by the end of 2025. The fastest train in Europe goes almost 200 mph (320 kph). Yet high-speed rail remains absent from most of…

The Conversation

Even small drops in vaccination rates for US children can lead to disease outbreaks

More than three-quarters of U.S. counties and jurisdictions are experiencing declines in childhood vaccination rates, a trend that began in 2019, according to a September 2025 NBC News–Stanford University investigation. The report also found a “large swath” of the U.S. no longer has the “basic, ground-level immunity” needed to stop…

The Conversation

Cuts to school lunch and food bank funding mean less fresh produce for children and families

The U.S. government recently cut more than US$1 billion in funding to two long-running programs that helped schools and food banks feed children and families in need. The U.S. Department of Agriculture says the reductions are a “return to long-term, fiscally responsible initiatives.” But advocacy groups say the cuts will…

The Conversation

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Insomnia can lead to heart issues − a psychologist recommends changes that can improve sleep

About 10% of Americans say they have chronic insomnia, and millions of others report poor sleep quality. Ongoing research has found that bad sleep could lead to numerous health problems, including heart disease.

The Conversation

In hundreds of communities across the US, finding a dentist is like pulling teeth − but in 14 states, dental therapists are filling the gap

For more than 50 million Americans, finding a dentist is a difficult – in some cases, impossible – proposition. Many rural communities don’t have a dentist. People of color and those with disabilities often lack access, and only about one-third of dentists accept Medicaid.

The Conversation

More kids than ever need special education, but burnout has caused a teacher shortage

A growing number of students in public schools – right now, about 15% of them – are eligible for special education services. These services include specially designed instruction for students with autism, learning or physical disabilities, or traumatic brain injuries. But going into the current school year, more than half…

The Conversation

Hospital-acquired infections are rising – here’s how to protect yourself in health care settings

A new study from the National Institutes of Health shows a jump in both hospital-acquired infections and resistance to the antibiotics used to treat them. The findings are based on data gathered at 120 U.S. hospitals from January 2018 to December 2022, a five-year period that included the COVID-19 pandemic.…

The Conversation

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Fewer bees and other pollinating insects lead to shrinking crops

Many plants, from crops to carnations, cannot bear fruit or reproduce without bees, beetles, butterflies and other insects to pollinate them. But the population of insect pollinators is dropping in the U.S., due in part to pesticides, climate change, invasive plants and diminished habitats. Rachel Mallinger, assistant professor of entomology…

The Conversation

After an 80-year absence, gray wolves have returned to Colorado − here's how the reintroduction of this apex predator will affect prey and plants

Gray wolves were reintroduced to Colorado in December 2023, the latest attempt in a decadeslong effort to build up wolf populations in the Rocky Mountain states. SciLine interviewed Joanna Lambert, professor of wildlife ecology and director of the American Canid Project at the University of Colorado Boulder, who discussed how…

The Conversation

Stories about war, violence and hate crime can cause anxiety, anger and depression in kids -- here's how to discuss bad news with your children

Violent photos and videos – whether from conflicts abroad or shootings near home – are commonplace, even ubiquitous, on television and social media today. The impact on children can be debilitating.

The Conversation

Want a healthier lawn? Instead of bagging fall leaves, take the lazy way out and get a more environmentally friendly yard

Autumn is the season to gaze at gorgeous leaves of gold, yellow and orange as they flutter from the trees and fall on our yards – but then, of course, comes the tedious task of raking them up and trying to decide what to do with them. SciLine interviewed Susan…

The Conversation

Millions of US children have mediocre reading skills, but engaged parents and a committed school curriculum can help

Reading ability among U.S. students remained low in 2022, with 37% of fourth graders and 30% of eighth graders scoring below the basic proficiency levels for reading set by the National Assessment of Educational Progress.

The Conversation

Heat pumps will cool your home during the hottest of summers and reduce your global warming impact

Heat pumps can be used to both cool and heat homes. The 2022 federal Inflation Reduction Act provides financial incentives for installing one. SciLine interviewed Theresa Pistochini of the Energy Efficiency Institute and Western Cooling Efficiency Center at the University of California, Davis. She describes how home heat pumps work;…

The Conversation

Most US nursing homes are understaffed, potentially compromising health care for more than a million elderly residents

More than 80% of U.S. nursing homes reported staffing shortages in early 2023. SciLine interviewed Dr. Jasmine Travers, a gerontological nurse practitioner and assistant professor of nursing at New York University Rory Meyers College of Nursing, and asked her how the shortage affects health care for nursing home residents, if…

The Conversation

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Inverse

This One Type of Heat Could Be the Most Deadly to Human Health

Heat can be life-threatening, and some types of heat are more dangerous than others.

The Conversation

As suicides rise in the US, the 988 hotline offers hope – but most Americans aren't aware of it

July 2023 marks the one-year anniversary of the national launch of the 988 Suicide Crisis Lifeline. Currently, more than 200 call centers throughout the U.S. are responding to 988 calls. But few people know it exists. SciLine interviewed Dr. Emmy Betz, a professor of emergency medicine at the University of…

The Conversation

As a summer heat wave pummels the US, an expert warns about the dangers of humidity – particularly for toddlers, young athletes and older adults

Because of climate change, summers are getting hotter and more humid – much more humid. SciLine interviewed Dr. W. Larry Kenney, professor of physiology and kinesiology at Penn State University, who discussed why humid heat can be dangerous to human health and, in some cases, life-threatening; how heat stresses the…

Salon

The dangers of SNAP benefit reductions

"Anything that reduces access to SNAP . . . is going to have the effect of increasing food insecurity rates"

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The Conversation

Food insecurity already affects 12 million US homes -- and reductions in SNAP benefits won't help

Millions of Americans struggle to afford healthy meals and nutritious food. Known as “food insecurity,” this problem was already rising when Supplemental Nutrition Assistance Program, or SNAP, benefits – previously called food stamps – were cut in 35 states this spring. SciLine interviewed Hilary Seligman, professor of medicine at the…

The Conversation

Kids missing school: Why it's happening -- and how to stop it

Chronic absenteeism – defined as a student’s missing approximately 18 days of the school year – is on the rise. Compared with the years preceding the COVID-19 pandemic, almost three-quarters of U.S. public schools are now showing significant increases.

Salon

How dirty corporations use greenwashing

Companies say they're investing in environment while lobbying against climate legislation

The Conversation

How corporations use greenwashing to convince you they are battling climate change

Many corporations claim their products are “green-friendly.” But how do you know if what they’re selling is truly eco-safe? SciLine interviewed Thomas Lyon, professor of sustainable science, technology and commerce at the University of Michigan, on how to buy environmentally sustainable products, whether carbon credits actually work and the prevalence…

Fortune

Can psychedelics really treat OCD, depression, and chronic pain? A researcher explains how they work and their potential risks

"The drugs so far appear to be quite effective."

The Conversation

Use of psychedelics to treat PTSD, OCD, depression and chronic pain – a researcher discusses recent trials, possible risks

New research is exploring whether psychedelic drugs, taken under strict medical supervision, might help in treating post-traumatic stress disorder, chronic pain, depression and obsessive-compulsive disorder. SciLine interviewed Dr. Jennifer Mitchell – a professor in the Departments of Neurology and Psychiatry Behavioral Science in the School of Medicine at the University…

Salon

Public transit recovering from pandemic

A civil engineering professor explains what happened to public transit during the pandemic, and how it can recover

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