Dr. Arjun Mehra
Infectious Disease, Vaccines & Global Health
Global health writer tracking the science that protects populations from the diseases that threaten them most.
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Articles by Dr. Arjun Mehra
Your Brain's Hidden Cleaners Are Finally Changing
You might not realize that tiny cells in your brain, called microglia, are constantly cleaning up debris. Scientists now understand how these hidden cleaners shift their behavior, leading to a new approach to fight memory loss.
Your Body's Shield Can Stop Fighting Itself
A future where your immune system is fully unleashed against cancer, no longer held back by the tumor itself. Discover the hidden mechanism tumors use to tire out your disease-fighting cells, and how scientists plan to disarm it.
Your Next Vaccine May Finally Keep You Safe Longer
A vaccine that offers stronger, longer-lasting protection without needing refrigeration. Scientists are quietly reinventing a century-old ingredient to make this a reality for future shots.
Why Your Brain Cells Quietly Rust
Imagine a silent process in your brain, like rust on metal, quietly damaging your cells and affecting your memory. New science is finally revealing how to stop it. This discovery could unlock treatments for devastating diseases and help you protect your most vital organ.
A Spice May Quietly Halt Brain Disease and Cancer
Imagine a simple compound, perhaps as common as a kitchen spice, capable of defending against devastating illnesses like Alzheimer's and cancer. Discover how scientists are turning this vision into reality, offering hope for healthier, longer lives.