In a groundbreaking study, researchers at the Sainsbury Wellcome Centre at UCL have delved into the workings of the periaqueductal gray (PAG) region of the brain, which is known to be hyperactive in individuals suffering from anxiety and PTSD. Their findings reveal that inhibitory neurons in the PAG are in a constant state of firing, allowing for precise modulation of their activity levels. The team’s discoveries demonstrate a direct correlation between these neurons and the initiation and duration of escape responses in mice. This research sheds new light on the neural mechanisms underlying anxiety and stress responses, opening doors to potential therapeutic interventions.
Researchers reveal neurons that regulate sensitivity to threat
A cost-effective catalyst to revolutionize hydrogen production
Researchers from the Tokyo University of Science developed a new catalyst called bis(diimino)palladium coordination nanosheets (PdDI). These low-cost palladium-based nanosheets perform as well as platinum in producing hydrogen. Created using a simple synthesis process with minimal precious metals, the nanosheets reduce metal usage and lower hydrogen production costs.
Our breathing affects our vision
A study from Karolinska Institutet in Sweden found that breathing influences pupil size. The pupil is smallest during inhalation and largest during exhalation. This effect is always present and doesn't require external stimuli. Breathing's impact on brain activity and cognitive functions suggests this could help regulate vision and attention.
Loneliness after losing a spouse, study
Researchers at Monash University found that losing a spouse causes one to feel more lonely and isolated despite support. Based on data taken from nearly 750 people who had lost their spouses, they found that loneliness and grief affected both genders similarly, with no significant differences based on wealth or health status.
A long-standing Jupiter’s cloud mystery solved
A collaboration between amateur and professional astronomers has led to a major discovery about Jupiter's clouds, challenging a long-standing belief. Thanks to amateur astronomer Dr. Steven Hill, it’s now found that the clouds are not made of ammonia ice, but rather a mix of ammonium hydrosulphide and smog.