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
The Tiny Particles Training Your Immune System
One new approach might teach your immune system to fight cancer, stubborn infections, and autoimmune problems alike. Tiny particles are learning to wake up your body's own hidden defenders.
A Common Mushroom May Help Certain Brains Learn Better
A surprising new study found a compound in common mushrooms can help brains affected by certain genetic conditions. It works in a way scientists didn't expect — and it may improve both memory and learning.
A Molecule From Young Cells Could Rewind Heart Aging
Every heart wears down with age, growing less efficient and more vulnerable. A tiny messenger molecule from younger cells might be able to reverse that clock.
A Simple Plant Trick Quietly Calms Your Brain
Did you know some brain cells act like tiny pac-men, gobbling up vital feel-good chemicals too quickly? New research reveals a surprising natural compound that might finally help calm this overactivity.
Bacteria That Eat Tumors Are Finally Here
Imagine tiny, living soldiers that hunt down cancer cells in your body. This surprising new approach to cancer treatment is moving from the lab to real human trials, offering a targeted way to fight disease.
Detecting Hidden Impacts That Signal Real Danger
Falling is a leading cause of accidental death for older adults, but not every fall results in a dangerous impact. New technology can pinpoint the precise moment someone hits the ground, helping get help faster and direct resources better.
A Common Drug May Quiet Sensory Overload
For years, managing certain brain conditions meant navigating a maze of subjective observations. Now, a surprising medication could offer clearer insights into quieting overwhelming sensory experiences.
Exercise and Your Daily Vitamin Could Age You Differently
Did you know your workout routine and a simple vitamin B could be tugging at your cells' internal clock in opposite directions? This article reveals how these everyday habits might be shaping your long-term health and cellular youth.
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.