MIT just created a test that can tell if you’re immune to COVID-19
What smart toilet seats reveal about digital health’s evolution 
Which microbes live in your gut? A microbiologist tries at-home test kits
over-the-counter hearing aids
You no longer need a prescription to buy hearing aids in the US
Viruses may one day treat inflammatory bowel disease
Cells become zombies when the ends of their chromosomes are damaged
Long COVID-19 and chronic conditions after viral infections may stem from an overactive immune response
ultrasound sticker
MIT’s new ultrasound sticker lets you see inside your body
MIT engineers 3D-print rubbery brain implants that don’t “stab” the brain
How child mortality fell from 40% to 3.7% in 200 years