From height to teeth, the internet shares what could be ‘seriously’ harmful

A viral question posed to Reddit users on the “Ask Reddit” forum invited people to discuss some things that can unknowingly do a lot of damage.

“What most people don’t realize can seriously confuse you?” read the question from u/Specktakles88, which has garnered nearly 30,000 votes since its posting on Thursday.

Redditors’ answers to the question of what could seriously harm someone ranged from a missed fist fight to ignoring teeth problems.
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One Reddit comment concerned teeth-related issues.

“I had a filling that fell out and I ignored it, worst pain ever,” wrote one Reddit user. “It cost me a lot too.”

“An infection in your gums can easily migrate to your heart,” noted another.

A piece published by Penn Medicine stated that research shows a link between gum disease and inflammation that precedes heart attacks and strokes.

However, the exact nature of the relationship remains unclear.


A popular response was that someone was hiking at an altitude they are not used to.

“I tried to climb a 5,000m peak all by myself, without telling anyone but this nomad what my plans were,” one Redditor told me. “I got to about 4,800 meters and felt like I was going blind, followed by” [high-altitude pulmonary edema] symptoms.”

According to the Cleveland Clinic, a person can experience altitude sickness if they don’t allow their body to adjust to the new altitude.

Symptoms can vary in people experiencing altitude sickness, depending on how severe the case is. These symptoms may include dizziness, nausea and vomiting, and confusion.


One commenter shared that people may not fully understand how dangerous a fistfight can be.

†[One] punch is all it takes to be fucked for life, if not die,” they wrote. “Fall wrong. Hit your head against something. The blow itself.”

Another said they knew someone who hit someone on the head and suffered an injury.

“Broken a few fingers and metacarpals, tore a ligament or two,” they wrote. “The hand was in a cast for months and he lost some range of motion.”

Social media

“Especially late into the night endless scrolling in the dark and then again when you wake up, scrolling and scrolling until noon when you realize you’re still in bed and you’ve gained absolutely nothing by staring at your phone,” noted one Redditor. †

Some agreed, writing that they have felt unhappy scrolling through social media.

“That’s true,” one comment read. “I’m always happier when I read my book [than] when I look at Reddit.”

High expectations of yourself

“It can leave you with a great deal of guilt and lack of confidence,” the comment read. “It’s okay to fail sometimes, not everything is a lesson.”

Fellow redditors agreed.

“I feel like I didn’t really learn to fail as a kid,” one Redditor noted. “So now I’m always afraid of making mistakes and if I make one, I think I’m stupid.”

Some spoke encouraging words.

“Sometimes failure is part of knowing you’re on the move [forward]…keep it up,” someone wrote.

Another shared that failure can help one grow and sees it as “early attempts at success.”

Other posts on the “Ask Reddit” forum have gone viral, including one asking people to share their biggest regrets, one where atheists answer about what they believe in, and one about family secrets.

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