Original: "The study conducted by researchers from the University of XYZ focused on the impact of social media on teenagers' mental health. The research team collected data from 500 participants aged 13 to 18, and their findings were published in the Journal of Behavioral Sciences. The study revealed a significant correlation between excessive social media usage and increased levels of anxiety and depression among teenagers."

Revised: Researchers from the University of XYZ conducted a study examining how social media affects the mental health of teenagers. Published in the Journal of Behavioral Sciences, their findings were based on data collected from 500 participants aged 13 to 18. The study discovered a noteworthy connection between excessive use of social media and heightened levels of anxiety and depression in teenagers.

Original: "In another study, scientists investigated the relationship between sleep deprivation and cognitive performance. They recruited 100 volunteers and divided them into two groups. One group was deprived of sleep for 24 hours, while the other group had a full night's sleep. The participants' cognitive abilities were then assessed through a series of tests. The results showed a significant decline in cognitive performance among individuals who were sleep-deprived."

Revised: Scientists conducted a study to explore the link between sleep deprivation and cognitive performance. The researchers enlisted 100 volunteers and split them into two groups. One group was deprived of sleep for 24 hours, while the other group had a normal night's sleep. The participants' cognitive abilities were evaluated using a set of tests. The findings demonstrated a notable decline in cognitive performance among individuals who experienced sleep deprivation.

Original: "A recent survey conducted by a leading market research firm revealed that the majority of consumers prefer online shopping over physical retail stores. The study gathered responses from 2,000 participants across different age groups. The survey findings attributed the preference for online shopping to factors such as convenience, wider product selection, and competitive pricing."

Revised: According to a recent survey conducted by a prominent market research firm, online shopping is favored by the majority of consumers in comparison to physical retail stores. The survey collected responses from 2,000 participants spanning various age groups. The survey results identified convenience, a broader product range, and competitive pricing as key factors contributing to the preference for online shopping.

Original: "An experiment conducted by nutritionists explored the effects of a high-protein diet on weight loss. The study involved 50 participants who were randomly assigned to either a high-protein or a low-protein diet. Both groups followed their respective diets for a duration of 12 weeks. The results indicated that participants on the high-protein diet experienced greater weight loss compared to those on the low-protein diet."

Revised: Nutritionists conducted an experiment to investigate the impact of a high-protein diet on weight loss. Fifty participants were included in the study and randomly allocated to either a high-protein or a low-protein diet. Both groups adhered to their assigned diets for a period of 12 weeks. The findings revealed that individuals on the high-protein diet achieved more significant weight loss than those on the low-protein diet.

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