Learn languages naturally with fresh, real content!

Popular Topics
Explore By Region
Scientists discover a brain circuit in mice that boosts exercise endurance, suggesting similar pathways may exist in humans.
Scientists at the University of Pennsylvania have found that a specific brain circuit in mice, involving SF1 neurons in the ventromedial hypothalamus, is critical for building endurance through exercise.
These neurons become more active and form more connections after regular training, with blocked neurons preventing endurance gains and artificially activated ones improving performance.
The brain's role in regulating energy use and metabolic adaptation challenges the idea that exercise benefits are purely physical.
While the study was done in mice, researchers believe similar mechanisms may exist in humans, potentially offering new ways to enhance fitness, especially for older adults or those with mobility issues.
The findings were published in Neuron on February 12, 2026.
Los científicos descubren un circuito cerebral en ratones que aumenta la resistencia al ejercicio, lo que sugiere que pueden existir vías similares en los humanos.