How blocking one protein regenerates knee cartilage in aging mice and human tissue

How blocking one protein regenerates knee cartilage in aging mice and human tissue

BY THE OPTIMIST DAILY EDITORIAL TEAM A Stanford Medicine study has identified a protein that roughly doubles in aging joints and blocks cartilage from repairing itself. Blocking that protein in older mice regenerated hyaline cartilage across the joint surface. Human tissue samples from knee replacement surgeries responded the same way after just one week of…

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Podcast Transcript June 26th, 2026— Gig worker rights, cervical cancer wins, and a hopeful take on human cooperation

Podcast Transcript June 26th, 2026— Gig worker rights, cervical cancer wins, and a hopeful take on human cooperation

Episode Description: A study of more than 100,000 people across 125 countries found that people cooperate far more than they assume other people will. Hopeful news to receive in a world that feels so divided. This week Arielle and Karissa also cover gig worker rights getting their first-ever international vote, Pakistan scrapping its period tax…

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Period tax scrapped in Pakistan: what the ruling means for women

Period tax scrapped in Pakistan: what the ruling means for women

BY THE OPTIMIST DAILY EDITORIAL TEAM Two lawyers filed a court case. Thousands signed a petition. Pakistan just agreed to scrap its sales tax on period products. Finance Minister Muhammad Aurangzeb announced the move this month, calling sanitary products “daily necessities that are indispensable for women’s health, dignity and full participation in social activities.” The…

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