Scientists say their study could shed light on stress-related mental illnesses but that more research is needed.

New research reveals that mutations in the stem of the SARS-CoV-2 spike protein led to the virus becoming progressively tighter over time, which may have improved the virus's ability to transmit through nasal droplets and infect host cells once in the body.

Researchers have developed a technology for delivering a microrobot to a target point of a hippocampus in an in-vitro environment, connecting neural networks, and measuring neural signals. The findings are expected to contribute to neural network research and the verification and analysis of cell therapy products.

Shigella bacteria can infect humans but not mice. A team can now explain why. Their findings may explain the multifariousness of a key weapon of our immune system.

Researchers report that the flow of cerebrospinal fluid in the brain is linked to waking brain activity. The study demonstrates that manipulating blood flow in the brain with visual stimulation induces complementary fluid flow. The findings could impact treatment for conditions like Alzheimer's disease, which have been associated with declines in cerebrospinal fluid flow.