👋 Welcome to 5 Things PM! It’s been more than a decade since Malaysia Airlines Flight 370 vanished without a trace, spawning competing theories about what happened. Now, the search for the missing plane is about to resume.

Here’s what else you might have missed during your busy day.

5 things

1️⃣ Extreme cold

It’s December, so of course it’s cold outside — but an arctic air mass that’s descended into the US has plunged temperatures 20 to 30 degrees lower than normal for this time of year.

2️⃣ Doctor’s advice

The chilly weather also means more people are getting sick. That’s often the case during the colder months. CNN’s Dr. Leana Wen explains how you can reduce your odds of getting sick or get over your sniffles faster.

3️⃣ Spiking energy costs

Stephanie Tate couldn’t figur

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