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Disease Update

A deliberate fix for democracy

Take a group of random citizens, give them the facts and let thoughtful discussion unfold

She saw the obesity epidemic coming. Then an unexpected finding mired her in controversy.

Katherine Flegal was a scientist who found herself crunching numbers for the government, until one day her analyses set off a firestorm. What does she make of her decades as a woman in public health research?

How much meat can we eat — sustainably?

Scientists find that a small amount of animal products could have a place in our diets without wreaking environmental havoc. But it’s far less than what we consume today, and only if farmed in just the right way.

The invention of incarceration

Prisons have been controversial since their beginnings in the late 1700s — why do they keep failing to live up to expectations?

The brain, the criminal and the courts

States of mind that the legal system cares about — memory, responsibility and mental maturity — have long been difficult to describe objectively, but neuroscientists are starting to detect patterns. Coming soon to a courtroom near you?

The creative way to pay for wildlife recovery

OPINION: ‘Pragmatic rewilding’ restores damaged ecosystems and harnesses private money, with benefits for all

Rethinking cities in the face of extreme heat

VIDEO: Cities have recently experienced extreme heat waves, causing preventable illness and death. How can we protect people from dangerous heat while also reducing carbon emissions?

Do ‘workplace wellness’ programs work?

It depends on what you mean by a wellness program. Offerings by companies are all over the map, but most are skimpy and scattershot. It takes more than that to boost employees’ health or a company’s bottom line.

The secrets of cooperation

Most people care what others think of them. In many situations, that can be leveraged for the common good.

The obscure calculation transforming climate policy

After long debate, economists and philosophers are reaching consensus on how to value future generations

Beyond COP27: Who will pay for climate solutions?

VIDEO: Economic issues were front and center at the most recent global climate summit. Join Tobias Adrian of the International Monetary Fund and Shuang Liu of the World Resources Institute to take stock of the investments needed to prevent future climate disasters.

The inheritance enigma

Retirement is a time for spending, not saving. And yet many people hold on to their wealth. Understanding why, and where that money ends up, is of increasing importance as the US population ages.

Doing away with cash bail

In the US, people charged with a crime usually need to post a large cash bond to be released before trial — a system used barely anywhere else in the world. This doesn’t enhance public safety and causes great hardship to defendants and families. There’s a better way, researchers say.

Soda taxes can’t reverse the obesity epidemic

OPINION: They might be able to help, but only if well-designed and in combination with other policies

The puzzle of play

The purpose of play — for children, monkeys, rats or meerkats — has proved surprisingly hard to pin down. Scientists continue to toss around ideas.

What legacy lies ahead for Black Lives Matter?

Historically, the road to reform has often begun with protesters taking to the streets. A sociologist and a political scientist take stock of whether today’s activism will lead to actual change.

Why real-life places still matter in the age of texting and Twitter

Interactions in physical spaces, whether around the watercooler or at the neighborhood bar, are crucial to forming social ties

How sustainable are fake meats?

Marketed to meat lovers, plant-based burgers like Impossible and Beyond claim to taste like the real thing and to have far lighter environmental footprints. Here’s what the numbers have to say.

Can statistics help crack the mysterious Voynich manuscript?

The meaning of the cryptic text has eluded scholars for centuries. Their latest efforts include computational analyses seeking new insights into the medieval enigma.

Pricing groundwater will help solve California’s water problems

OPINION: The state’s Sustainable Groundwater Management Act is a great opportunity — if it goes far enough

When criminals rule the land

In Latin America, tens of millions of people live in territories that are governed by outlaws — from powerful drug cartels to crime syndicates. What can be done to restore legitimate law and order?

Sounding the alarm: How noise hurts the heart

Loud road and air traffic has been linked to a greater risk of high blood pressure, heart attacks and strokes. Scientists are uncovering new details about how what you hear stresses the cardiovascular system.

When courtroom science goes wrong — and how stats can fix it

COMIC: Bite marks, shoe prints, crime-scene fibers: Matches to suspects are often far shakier than courtroom experts claim. Better statistical methods — among them, a little beast known as the “likelihood ratio” — can cut down on wrong convictions.

Out of the mouth of babes

Learning a language is child’s play, but linguists are still trying to understand how children do it so easily

How to recover from the Great Education Disruption

OPINION: Children around the world were out of school for months, with big impacts on learning, well-being and the economy. How do we avoid a ‘generational catastrophe’?

Analytics wind up for a shot in ice hockey

Moneyball-like statistical tools have already changed baseball, basketball and football. But bringing such methods to the ice has proved challenging. That might soon be changing.

How cities can fight climate change

Urban activities — think construction, transportation, heating, cooling and more — are major sources of greenhouse-gas emissions. Today, a growing number of cities are striving to slash their emission to net zero — here’s what they need to do.

Do patents invent innovation?

They're a common index of technological creativity, but research finds they can impede rather than encourage it

Happy hens, happy world

Farmers are recommitting themselves to animal welfare, and that might help the planet, too

The lasting anguish of moral injury

Psychologists are finding that moral code violations can leave an enduring mark — and may require new types of therapy

The power of brands, conscious and unconscious

Economists explore the complex forces that shape what ends up in your shopping cart and how that might change in the online marketplace 

Five mysteries about breast milk

The little that we know about breastfeeding tells us a lot — imagine if we knew more

An archaeological look at modern refugees

The techniques of archaeology, usually used to study the past, also illuminate the experiences of today’s displaced people

Why scientists need to be better at data visualization

The scientific literature is riddled with bad charts and graphs, leading to misunderstanding and worse. Avoiding design missteps can improve understanding of research.

Pliny the Elder’s radical idea to catalog knowledge

This year marks 2,000 years since the birth of the Roman author of the first natural encyclopedia

The hidden damage of solitary confinement

Meant to punish or protect, social isolation in prison creates a ripple of unintended effects on the psyche

Managing pain in a time of opioid abuse

Other therapies, more training, a new mindset: Can doctors bring relief to patients without putting them at risk for addiction?

Detention nation

As locking up immigrants has become common in the US, scholars tackle ‘crimmigration’ and its complexities

Hi, robot: Why robotics and language need each other

Machines might better understand our commands if they experienced our physical worlds, researchers say. That enhanced perception could sharpen their listening skills and improve performance.

Measuring surgical quality

Not all surgeons are equally skilled with a scalpel. Doctors are developing new ways to test — and improve — operating room performance.

Barista’s burden

The dark side of “service with a smile”

The human factor in clean water

There are many cheap and effective ways to provide safe water to the world’s poor regions. But projects often fail due to inadequate planning, maintenance or persuasive power.

The origins and future of the Grand Canyon

VIDEO: How old is the Grand Canyon? Will the Colorado River run dry? Learn about how the Big Ditch formed and the present state and uncertain future of the Colorado River watershed.

There are more active volcanoes than you think

OPINION: Volcanologists warn that magma-filled vents evolve over time, leading to an underestimation of the number that might erupt — especially those capable of the biggest explosions

The baby brain: Learning in leaps and bounds

VIDEO: Learn how the baby brain changes from gestation to toddlerhood, and what parents, teachers and policymakers can do to ensure kids are set up for success

The complexities of a universal basic income

It’s a hot topic under political debate: providing cash grants as a social safety net. Small programs hint at how it might work — or not — on a national scale.

Treating the growing trauma of family separation

War, disasters, trafficking and immigration are tearing millions of children from their parents all around the world. A psychologist explores how to help them recover.

The global soda tax experiment

An increasing number of cities and countries have begun taxing sugary beverages. But can raising the price of these drinks really make a dent in obesity, diabetes and other ailments?

Understanding carjacking

Criminologist Bruce Jacobs has spoken to carjackers in detail about their crimes. Here’s what he’s learned in two decades of study.

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