The 25 countries with the oldest populations in the world

Tech Insider : Travel, Business
Buildings in Milan, Italy.
Italy has the third-highest percentage of residents aged 65 and older in the world.

Sean Pavone/Shutterstock

I tried 8 wraps and sandwiches from Trader Joe's and ranked them from worst to best

Tech Insider : Business, Style
trader joes tuna wrap
I tried Trader Joe's wraps and sandwiches and ranked them.

Erin McDowell/Business Insider

I tried vanilla ice cream from Costco, Whole Foods, Wegmans, and Trader Joe's. The tastiest one is also a great value.

Tech Insider : Business
Several cartons of ice cream sit on a wooden table.

I tried 14 high-protein drinks and ranked them from worst to best. Some had as much protein as a whole chicken breast.

Tech Insider : Business, Sports
protein drinks ranking
I compared 14 high-protein chocolate drinks, including Core Power, Muscle Milk, and Boost.

Kristine Villarroel/Business Insider

I tried store-brand peanut butter from Whole Foods, Trader Joe's, Costco, and Wegmans. My kids couldn't get enough of the winner.

Tech Insider : Business
Jars of peanut butter on a white-marble counter. There is a jar of Trader Joe's peanut butter, a two-pack of Kirkland Signature peanut butter, a jar of Wegmans peanut butter, and a jar of 365 peanut butter
I tried four brands of peanut butter from Trader Joe's, Costco, Wegmans, and Whole Foods.

Ted Berg

I tried hummus from Costco, Wegmans, Whole Foods, and Trader Joe's. I finished a container of the winning spread in a day.

Tech Insider : Business, Style
A container of Trader Joe's organic hummus on a plate with multicolored carrots and pretzel crisps.
I visited Trader Joe's, Costco, Whole Foods, and Wegmans to find the best hummus at a grocery store.

Ted Berg

I tried store-brand Greek yogurt from Whole Foods, Trader Joe's, Costco, and Wegmans. The winner has a permanent spot in my fridge.

Tech Insider : Business
Four containers of yogurt, stacked in two rows, on a gray countertop.

The 20 most stressed states in the US, ranked

Tech Insider : Economy, Business
Some states are more stressful than others, a WalletHub analysis found.
Some states are more stressful than others, a WalletHub analysis found.

Olga Pankova/Getty Images

Every major character death in 'Stranger Things,' ranked by sadness

Tech Insider : Business
Max, Eleven, and Kali plan to attack Vecna in the
Max, Eleven, and Kali plan to attack Vecna in the "Stranger Things" finale.

Courtesy of Netflix

21 of the most popular TV shows of the year, ranked from worst to best

Tech Insider : Business, Environment, Style
Kristen Bell as Joanne, Adam Brody as Noah in episode 202 of Nobody Wants This.
"Nobody Wants This" managed to be one of the top shows of the year even though its second season didn't resonate as much as its first.

Erin Simkin/Netflix

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