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Zooming in on the brains of babies

New tools are helping neuroscientists investigate why early life is such a crucial time for neural development

In adults, and now in teens, poor sleep is linked to cardiovascular risk

A slumber researcher explains why getting enough z’s is crucial to your health



When the brain’s waste disposal system fails

Marco Sardiello explains how problems with the cell’s lysosomes lead to disease

Listening to ketamine

The fast-acting drug offers a new way to treat depression and fathom its origins. Recent approval of a nasal spray promises to expand access, but much remains unknown about long-term use and the potential for abuse.

Hacking the immune system

How the body’s own defense cells can be turned into tiny, programmable assassins to battle cancers and other disorders

The iron ocean

Through dust, not rust, the metal plays a complex, controversial role in Earth’s climate

The knotty economics of student loan debt

People in the US owe a whopping $1.7 trillion for higher education. An economist weighs in on how to deal with the ballooning college tab.

To pee or not to pee? That is a question for the bladder — and the brain

How do we sense the need to urinate? The basic urge is surprisingly complex and can go awry as we age.

To help birds and insects, cultivate native gardens

Entomologist Doug Tallamy explains how filling our yards with local plants can provide our feathered friends with a caterpillar buffet

Rethinking insurance for floods, wildfires and other catastrophes

The industry is in crisis just when disaster coverage is most needed

A long-overlooked brain region may be key to complex thought

The thalamus has traditionally been viewed just as the brain’s sensory relay station. But it may also play an important role in higher-level cognition, MIT’s Michael Halassa explains in a Q&A.

Teens can have excellent executive function — just not all the time

Adolescents’ brains are highly capable, if inconsistent, during this critical age of exploration and development. They are also acutely tuned into rewards.

Solo stars among the genes

From maggots’ movements to voles’ roles, sometimes single genes can have outsize effects on behavior

Unhealthy work: Why migrants are especially vulnerable to injury and death on the job

A mysterious kidney disease is just one of the many health risks faced by immigrant laborers. In a Q&A, occupational health expert Marc Schenker discusses the hazards and a few potential solutions.

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