Eva Behrens, a 17-year-old student at Redwood High School in Marin County, Calif., said she estimates half the girls in her grade struggle with body-image concerns tied to Instagram. When her classmate Molly Pitts, 17, arrived at high school, she found her peers using Instagram as a tool to measure their relative popularity. That year, Facebook for the first time had observed a decline in the number of teens using its namesake Facebook product, according to the documents. The features that Instagram identifies as most harmful to teens appear to be at the platform’s core. Instagram’s researchers noted that those struggling with the platform’s psychological effects weren’t necessarily logging off. He said the research into the mental-health effects on teens was valuable, and that Facebook employees ask tough questions about the platform. Facebook’s research indicates Instagram’s effects aren’t harmful for all users. Mr. Mosseri said in the recent interview, "We don’t send research out to regulators on a regular basis for a number of reasons." He added Facebook should figure out a way to share high-level overviews of what the company is learning, and that he also wanted to give external researchers access to Facebook’s data. The tendency to share only the best moments, a pressure to look perfect and an addictive product can send teens spiraling toward eating disorders, an unhealthy sense of their own bodies and depression, March 2020 internal research states

It's hard to know exactly how saber-tooth cats behaved because none are alive today. That's one reason why saber-tooth cats tended to aim for the throat or abdomen instead of the bonier parts of their prey. Instead, these cats used their canines for slicing and ripping the softest parts for their prey -- their throats and abdomens. Instead, pick up some sample sizes at your local dollar store, or decant them into travel-sized mini bottles. However, there aren't many broken saber teeth in the fossil record, it's likely that the cats killed through slashing and stabbing rather than holding on to struggling prey. Because of the variations in thickness, the cats' saber teeth were stronger from front to back than side to side. This may have made saber-tooth cats stronger but less agile than most of today's big cats. Fossils have also given paleontologists a few ideas on how saber-tooth cats lived and behaved

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"Aspects of Instagram exacerbate each other to create a perfect storm," the research states. She estimates that Instagram and other social-media apps play a role in the disorders of about half her patients. Lip balm and eye drops -- The sun and wind will play havoc with your lips and eyes. It’s great being invited to these events, but eventually, it will be your turn to host your friends and family, and many people worry as they find it daunting. That is especially true concerning so-called social comparison, which is when people assess their own value in relation to the attractiveness, wealth and success of others. They offer an unparalleled picture of how Facebook is acutely aware that the products and systems central to its business success routinely fail. When Facebook paid $1 billion for Instagram in 2012, it was a tiny startup with 13 employees and already a hit. The researchers are Facebook employees in areas including data science, marketing and product development who work on a range of issues related to how users interact with the platform

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