Shashank Sharma
170 posts

Shashank Sharma
@Schshank
LLb (Hons) @livuni Law, Yoga & Deadlifts 🏋🏻♂️




Your brain undergoes a literal cleaning process every time you move your body. Far from a metaphor, this mechanism involves physical forces that help remove cellular waste through enhanced circulation of cerebrospinal fluid (CSF). A recent study published in Nature Neuroscience reveals that simple activities — such as walking, stretching, or even engaging your core muscles — can act like a pump for the brain’s waste-clearance system. Researchers at Pennsylvania State University found that contractions of the abdominal muscles generate pressure changes in connected veins. These changes propagate upward, causing the brain to shift slightly within the skull. This subtle motion drives the flow of CSF, the clear fluid that surrounds and cushions the brain, carrying away proteins, metabolic debris, and other harmful waste products. The process works through mechanical coupling between the abdomen and the brain. Using advanced imaging on mice during movement and sophisticated computer simulations, the team demonstrated that abdominal contractions produce a sponge-like squeezing effect. This pushes old fluid outward while facilitating the entry of fresh fluid, effectively rinsing brain tissue. The findings help explain differences in CSF dynamics between sleep and wakefulness: during rest, fluid flows deeper into the brain for thorough cleaning, while movement assists in expelling waste outward. Impaired waste clearance has been strongly linked to neurodegenerative conditions such as Alzheimer’s disease. By showing how everyday physical activity supports this system, the study highlights a potential physiological benefit of movement for long-term brain health. However, the authors emphasize that the research is still in its early stages and does not yet prove that exercise directly prevents disease in humans. [Garborg, C. S., et al. (2026). Brain motion is driven by mechanical coupling with the abdomen. Nature Neuroscience. DOI: 0.1038/s41593-026-02279-z]



















A Qs for those living outside Tamil Nadu: would any other major state welcome as chief minister in today’s India someone whose full name is Chandrasekaran Joseph Vijay . What TN has shown today, may India do tomorrow: respect our unique multi-religious, multi-cultural diversity and give everyone a fair shot at their dreams. ⭐️👍














