Humans
We summarize the week's scientific breakthroughs every Thursday.
- Earth
Wildfires aren’t going away. Here’s how smoke can affect your health
How does repeat exposure to wildfire smoke affect our health? Three experts weigh in on the massive air pollution fueled by Canada’s ongoing fires.
- Humans
Lauren Schroeder looks beyond natural selection to rethink human evolution
Paleoanthropologists studying the fossil record have long focused on natural selection, but other processes play a big role too.
- Health & Medicine
50 years ago, scientists thought coffee might treat hyperactivity
Decades of follow-up research into whether caffeine can treat the symptoms of kids with ADHD has come up with more questions than answers.
- Psychology
‘Fires in the Dark’ illuminates how great healers ease mental suffering
Kay Redfield Jamison’s new book examines approaches used throughout history to restore troubled minds and broken spirits.
- Life
In Australia, mosquitoes and possums may spread a flesh-eating disease
Field surveys show that genetically identical bacteria responsible for a skin disease called Buruli ulcer appear in mosquitos, possums and people.
- Archaeology
How Asia’s first nomadic empire broke the rules of imperial expansion
New studies reveal clues to how mobile rulers assembled a multiethnic empire of herders known as the Xiongnu more than 2,000 years ago.
- Health & Medicine
Four things to know about malaria cases in the United States
Five people have picked up malaria in the United States without traveling abroad. The risk of contracting the disease remains extremely low.
- Archaeology
Indigenous input revealed early hints of fiber making in the tropics
To decipher marks on nearly 40,000-year-old stone tools and figure out what they were used for, researchers turned to the Philippines’ Pala’wan people.
- Psychology
Boys experience depression differently than girls. Here’s why that matters
Boys’ depression often manifests as anger or irritability, but teen mental health surveys tend to ask about hopelessness.
- Anthropology
Fossil marks suggest hominids butchered one another around 1.45 million years ago
Researchers disagree whether new evidence of stone tool marks on a hominid leg bone reflects ancient cannibalism or perhaps some other, undetected behavior.
- Astronomy
50 years ago, a search for proof that the Maya tracked comets came up short
The mystery of whether the ancient civilization tracked comets endures, but recent evidence hints the Maya tracked related meteor showers.
- Genetics
The first gene therapy for muscular dystrophy has been approved for some kids
The U.S. Food and Drug Administration cleared a shortened version of a gene for a muscle protein to be used in 4- and 5-year-olds with muscular dystrophy.
