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A growing body of evidence shows that exercise improves mood and cognitive function. However, much of this evidence comes from cycling, which allows researchers to precisely control exercise intensity in the laboratory.

Physics is most readily applied to relatively simple systems: a pendulum, two electrons colliding or the structure of the solar system. But when systems become complicated—when many particles interact with one another, in ...

Fracking, the injection of high-pressure fluid to fracture rock and release oil or gas, can trigger earthquakes. While some sites generate small tremors beforehand that may provide an early warning, others produce few or ...

Atherosclerosis, the process underlying most cardiovascular diseases, begins long before the first symptoms appear. An international study shows that the disease can already be detected in apparently healthy young adults ...

Jupiter hosts more than 100 moons, with most attention focused on the four Galilean moons: Io, Europa, Ganymede and Callisto. This is primarily due to their active geology, including Io being the most volcanically active ...

In 1899, scientists began tracking avian migration by placing a small ring with an identifier around birds' ankles. Researchers then had to recapture the birds elsewhere, leaving the journey between those points a mystery. ...

The catastrophic flood that killed hundreds of people in Nepal on Aug. 26, 2026, and left many more missing likely began with falling ice and rock crashing into the river below, but that wasn't the end of the disaster. Days ...

There is an old saying that nature is the best medicine, and it turns out bumblebees might agree. A new study published in the journal Royal Society Open Science suggests that buff-tailed bumblebees (Bombus terrestris) may ...

Results from a clinical trial and published today in the journal Lancet Infectious Diseases show that the antiviral drug Paxlovid, commonly prescribed to treat acute COVID-19, does not affect long COVID symptoms compared ...

On the surface, posting online reviews looks like a win-win activity. It helps both businesses we like and people who might frequent them. But although posting reviews can benefit others, it can also put us all at risk, according ...

In patients with intermediate-high-risk pulmonary embolism, catheter-directed thrombolysis improved short-term clinical outcomes compared with standard anticoagulation therapy alone, according to results presented today in ...

For robots to be successfully deployed in real-world environments, humans should trust them enough to cooperate with them. Some roboticists have been trying to determine whether users perceive robots that exhibit socially ...