Healthcare

Nasal COVID-19 vaccines prepare for infection right where it starts – in your nose and throat
10-second balance test is a powerful predictor of death for older adults
A new delivery method for drugs that can’t withstand stomach acid
drone deliveries
UK tries cancer meds by drone
Wearable tech: eating and playing our way to a longer lifespan 
This molecule may be the “secret sauce” of exercise — but it won’t work as a pill
CRISPR can create a “captain’s log” for bacteria traveling through the microbiome
Apple Watch now approved to track Parkinson’s symptoms
Moms’ “super-antibodies” point the way to new antibody medicines
direct sound printing
Future tech could 3D print objects inside your body