Emily Sullivan

Updated 9:25 a.m. ET

American Frances H. Arnold has won half of the 2018 Nobel Prize in chemistry for her work in changing how chemists produce new enzymes, sharing the prize with another American, George Smith, and Sir Gregory Winter of the U.K. for research that has led to new pharmaceuticals and cancer treatments.

Updated 11:00 p.m. ET

Chocolate cupcake, creme, mango, tutti frutti, "blue" — sugary-sounding flavors familiar to teenage e-cigarette users are facing more crackdowns from the Food and Drug Administration.

Do most consumers know that imitation meat products like "ground beef style" veggie burgers don't actually contain beef? Lawmakers in Missouri say maybe not.

The state enacted a law Tuesday requiring that only products that come from slaughtered, once-breathing animals can be marketed as meat. Specifically, the law defines meat as something "derived from harvested production livestock or poultry." The law's proponents say it protects consumers by letting them know exactly what's in their product.

Puerto Rico's sole provider of electricity for 1.5 million residents says power has been returned to all homes that lost electricity from Hurricane Maria last September.

Puerto Rico Electric Power Authority identified a family near the mountainous, rural barrios of Real and Anón, in Ponce, a city and municipality in the island's south, as their final customers to receive returned power. PREPA tweeted their image.

Uber wants to get you from your home to your doctor's office and you won't even need to open the Uber app. The company announced Thursday that it's teaming up with health care organizations to provide transportation for patients going to and from medical appointments.

The rides can be scheduled for patients through doctor's offices, by receptionists or other staffers. And they can be booked for immediate pickup or up to 30 days in advance. That means patients without a smartphone — who wouldn't be able to use Uber otherwise — can become Uber customers.

In a decision that may have sweeping effects, a judge has allowed an 11-year-old Illinois girl to use medical marijuana at school.

In this new year, beer brewers are enjoying a temporary excise tax break that was signed into federal law as 2017 was winding down.

Many potential emergency room patients are too sick to drive themselves to a hospital. But an ambulance can cost hundreds or thousands of dollars without insurance.

This where a popular ride-sharing app can step in, while also freeing up the ambulances for those who need them most.