Illustration shows a woman surrounded by a complex set of gears showing food items, representing the complex relationship she has with eating and food. Most treatments for eating disorders focus on co

Searching for a better treatment for eating disorders

By Kendall Powell   Cognitive behavioral therapy is proving to work well, but only for some patients. Scientists are seeking new innovations to help people grappling with the pervasive and often-hidden problems of anorexia, bulimia and binge eating. Read more

Australian centenarians Maya Sonnenburg, Isabel Paterson, Victor Lilienthal, Albert Lowcock and Joan Wilson give a photographer the thumbs up outside the Queensland Parliament building in Brisbane, wh

How racism in early life can affect long-term health

By Jack P. Shonkoff   OPINION: Excessive adversity activates biological reactions that can lead to lifelong problems in physical and mental wellbeing Read more

Illustration shows two young Black children staring at a wall with words that express examples of the racism people in the United States face.

Human life span may have no limit, analysis of supercentenarians suggests

By Tom Siegfried   Statistical methods predict that old-age record could reach 130 by century’s end Read more

 

12 days of Knowable

In addition to this week’s offerings, we are delighted to present “The 12 Days of Knowable,” as our seasonal gift to you.

Take care, and happy holidays,

Your friends at Knowable

  • A partridge in a pear tree   And just how did that pear tree come to be growing right there? The forest it resides in may seem like an untouched patch of wilderness, but, in fact, it has likely been gardened for millennia. We also suggest that the partridge reconsider and perch in a hedge. Hedges are the choice these days for discerning wildlife.
Photograph of a tan-colored mechanical device with several chambers and tubes inside a glass case.
A Christmas card drawing shows a woman and man in medieval dress leaning toward one another under a clump of mistletoe that’s held by two other people.
  • Seven swans a-swimming   Look a bit more closely at those swans, and you may spot something odd. Yes, they’re mechanical swans! Scientists are building an array of wild robots to learn about the social behavior of animals in their natural environments.
  • Eight maids a-milking  ... but evidently not doing the dishes! Traces of dairy on shards of ancient pottery reveal that people, if not specifically maids, have been a-milking for thousands of years. The remains shed light on what people cooked and ate way back when. Or consider a different kind of milkiness — the light of the millions of stars of our galaxy — and a different kind of archaeologist: an astronomer who studies the origins of the Milky Way.
Photograph at night, with mountainous terrain and desert floor. In the sky one can see thousands of stars and the disk of the Milky Way galaxy.
  • Nine ladies dancing   Moth ladies and bat ladies (and gents) have been gliding around the coevolutionary dance floor for 65 million years, with the former striving to avoid being dinner and the latter doing its best to thwart mothly defenses. Crowd-pleasing moth moves include the radar-jamming dip, the rapid-click reverse pivot and the hindwing tailspin.
  • Ten lords a-leaping   Jumping spiders are not merely handsome to look at, they are also lords of the lab — the creepy crawly intelligence lab, that is. Don’t let their fuzzy good looks fool you; these arachnids are super smart!
Conceptual illustration shows a woman in a chef’s hat and white coat that has a marijuana leaf on the pocket. She’s wearing gloves and pipetting something onto a chocolate chip cookie on a plate. Swir
  • Eleven pipers piping   Dudes, all that smoking is bad for your lungs. Give up the pipe and try edibles? They’re improving all the time!
  • Twelve drummers drumming   By now, odds are good you have heard “Pa rum pum pumpum” so many times this season that you are ready to put a boot through the Little Drummer Boy’s drum. For aid in composing your cease-and-desist letter, read about the hazards of noise to the heart.