Medicine

How close are we to reversing paralysis?
This man is trying to live underwater for a record-breaking 100 days
3D-printing the brain’s blood vessels with silicone could personalize neurosurgery
Saliva: The next frontier in cancer detection
Spread of deadly cancer delayed by organ transplant drug
Bird flu is everywhere. Are the vaccines ready?
Pfizer’s nasal spray for migraines is heading to pharmacies
Here’s how your sleep affects your immune system
Canadian students discover EpiPens will turn toxic in space
A single injection of stem cells slashes risk of heart attack or stroke by 58%