“I was able to piece together that this might be something I was experiencing,” said Burk, of Columbus, Ohio. She subsequently underwent her own testing and was diagnosed with ADHD — at age 42.
More adults are being diagnosed with attention-deficit/hyperactivity disorder. Diagnoses have been rising for decades but seem to have accelerated in the past few years.
At low temperatures the resistance of a layered magnetic semiconductor shoots up and down in response to an increasing magnetic field.
Simulations demonstrate that light can be confined within a scattering medium in a way similar to electrons in a disordered metal.
New research published in the journal Science uncovers how scratching aggravates inflammation and swelling in a mouse model of a type of eczema called allergic contact dermatitis.
“At first, these findings seemed to introduce a paradox: If scratching an itch is bad for us, why does it feel so good?” said senior author Daniel Kaplan, M.D., Ph.D., professor of dermatology and immunology at the University of Pittsburgh.
“Scratching is often pleasurable, which suggests that, in order to have evolved, this behavior must provide some kind of benefit. Our study helps resolve this paradox by providing evidence that scratching also provides defense against bacterial skin infections.”
Death by heartbreak doesn’t just happen in stories. In real life, severe stress can cause the sometimes-fatal takotsubo syndrome.
Interacting elements with hysteresis store a sequence of amplitudes in a unique way, functioning as a combination lock.
A 2024 study is facing skepticism, so the people behind that study are diving back underwater.
Monterey Bay Whale Watch said on Facebook that their scouting boat spotted the dolphins when it went out to “perform a survey on the coast south of Monterey,” about a 120 miles southwest of San Francisco.
The tour agency said its team counted 33 gray whales, 1,500-plus Risso’s dolphins and three northern right whale dolphins as they undertook the 60-mile roundtrip from Monterey to Point Sur.
The default mode network (DMN) is implicated in cognition and behavior. Here, the authors show that the DMN is cytoarchitecturally heterogeneous, it contains regions receptive to input from the sensory cortex and a core relatively insulated from environmental input, and it uniquely balances its output across sensory hierarchies.
