Daily Kitten · Sunday 25 October 2026

Teen bullying linked to a harsher self-view, and Korir's sub-two hope

Five stories: a cell protein that shapes fat, teens and bullying, better conversations, and a marathon champion's patient plan for Valencia.

Fitness illustration
Sunday 25 October 2026 · 5 small stories to take into your day

Today in 30 seconds

  • Over 300 Brazilian teens: early bullying linked to worse self-view a year later
  • Without the MTCH2 protein, only 5% to 10% of mouse precursor cells became fat cells
  • John Korir needs to cut 2:24 from his best to run a sub-two marathon in Valencia
FitnessAnimal or lab study

1In mouse cells, switching off one protein stopped most fat cells forming

What happened. In mouse cells and human cells grown in a lab, researchers at the Weizmann Institute of Science switched off a protein called MTCH2, nicknamed Mitch. The human cells then burned more fuel, including fat. Within 6 days, 80% to 90% of normal mouse precursor cells became mature fat cells, against only 5% to 10% without MTCH2. Both studies were published in 2025.

“In other words, we showed that Mitch determines the fate of fat in human cells.”

Professor Atan Gross, Weizmann Institute of Science

Why it matters. The work helps explain how cells decide whether to burn or store fuel. It does not show that blocking this protein is safe or useful in people, and the protein has other jobs in the body.

Lab cells and mice, not people; studies from 2025

Source: ScienceDaily1

MindObservational study

2Bullying in one school year linked to a harsher teen self-view later

What happened. Jonathan Santo, a psychology professor at the University of Nebraska at Omaha, and his team followed more than 300 teenagers in Curitiba, Brazil, for two school years. Teasing and insults from peers reported in the first year were linked to a more negative self-view over a year later. Bullying that kept going over time explained this link.

“Our study couldn't disentangle causes from effects.”

Jonathan Santo, professor of psychology, University of Nebraska at Omaha

Why it matters. Most teens in the study, 64.8%, felt positive about themselves. Ongoing teasing and a harsh self-view tend to go together, so repeated teasing is worth noticing early, even though the study cannot say which comes first.

Self-reports from one Brazilian sample; cannot show cause, and the link may run both ways

Source: Psychology Today2

MindExpert opinion

3Follow-up questions can turn small talk into deeper talk, a doctor argues

What happened. Manu Sidhu, a mental health doctor writing in Psychology Today, argues that small talk can open the way to deeper conversation rather than block it. Light questions help a person spot what matters to the other. The piece points to a 2017 study series in which people who asked more follow-up questions were better liked.

“The skill isn't necessarily asking better opening questions. It's asking better follow-up questions.”

Manu Sidhu, MBBS, mental health doctor

Why it matters. The pressure moves off the perfect opening line. Listening for what matters to the other person, then asking one good next question, may matter more. Sometimes a light chat is enough.

Opinion piece; cites one earlier study series without sample sizes

Source: Psychology Today3

MindExpert opinion

4A psychologist argues good communication starts with the other person

What happened. Howard J. Rankin, a psychologist and author, writes in Psychology Today that people talk and persuade better when they first learn what matters to the listener. He says no one in his training ever taught communication, a gap he noticed after more than a decade in practice.

Why it matters. Rankin notes that one of the biggest reasons patients change doctors is feeling that the doctor does not understand them. Asking what matters to the other person may help a message land, in a clinic or a sales meeting.

Opinion piece based on his experience; no new study

Source: Psychology Today4

Good newsStory

5Two-time Boston winner John Korir hopes to run under 2 hours in Valencia

What happened. Kenyan runner John Korir, who has won three World Marathon Majors, has signed a sponsorship deal that runs to the 2028 Los Angeles Olympics. He has never raced an Olympics or world championships for Kenya. On 6 December he defends his Valencia title, hoping to run under 2 hours, which means cutting 2:24 from his official best of 2:02:24.

“Any time I get in Valencia I will be happy with, but my prayer is to run sub-two hours”

John Korir, two-time Boston Marathon champion

Why it matters. Only three men per country can start an Olympic marathon, so his place is not certain. His path shows how steady progress can build over many years.

Sport news, not research; Olympic place not confirmed

Source: Marathon Handbook5

Today's thread is listening: to the person across the table, to a teenager, and to the slow pace of science and sport. Small steps, kindly taken.

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Sources

  1. Scientists discover a hidden switch that burns fat and blocks new fat cellsScienceDaily
  2. Peer Victimization Impacts Teens’ Self-Portrayals LaterPsychology Today
  3. How to Turn Small Talk Into Deep ConversationPsychology Today
  4. Understanding Others Is the Key to Better CommunicationPsychology Today
  5. John Korir Signs With COROS Through the 2028 Los Angeles OlympicsMarathon Handbook

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