Science
From mathematics and AI to medicine and psychology, The Optimist Daily features the latest news on discoveries, technological advances, and breakthroughs in the world of science. Our Science section is here to engage and enlighten you.
Brain health in old age starts taking shape far earlier than most people realize
BY THE OPTIMIST DAILY EDITORIAL TEAM In long-term studies where people had their cognitive ability tracked from youth into old age, one finding keeps standing out. “One of the most important factors explaining someone’s cognitive ability at age 70 is their cognitive ability when they were Read More...
What OB-GYNs want every mother to know about how pregnancy changes you
BY THE OPTIMIST DAILY EDITORIAL TEAM With Mother’s Day just behind us, conversations about everything that mothers give are top of mind. However, the biology of pregnancy has something more to say: the exchange runs in both directions, and some of it lasts a lifetime. There is a phenomenon Read More...
How Paraguay cut its poverty rate from over 50 to 16 percent in two decades
BY THE OPTIMIST DAILY EDITORIAL TEAM In 2005, more than half of Paraguay’s population lived in poverty. By 2025, that share had fallen to 16 percent. A third of the country’s population crossed that threshold over two decades; around 300,000 more did so in just the last two years. A World Read More...
China’s renewable hydrogen capacity crosses one million tonnes
BY THE OPTIMIST DAILY EDITORIAL TEAM The numbers from China’s National Energy Administration tell a story that is clearest in two parts. First: over 250,000 metric tonnes per year (approximately 275,000 US short tons) of green hydrogen capacity is now operational in China, more than double Read More...
What doctors want you to know about GLP-1s and bone loss
BY THE OPTIMIST DAILY EDITORIAL TEAM A study presented at the 2026 American Academy of Orthopaedic Surgeons annual meeting found that among nearly 147,000 adults with type 2 diabetes and obesity, GLP-1 use was associated with higher rates of osteoporosis, osteomalacia, and gout. The finding Read More...
8 sky events all stargazers should catch this month
BY THE OPTIMIST DAILY EDITORIAL TEAM The flower moon came and went on May 1. Most of what makes this month interesting is still ahead. This week: the Eta Aquarids The Eta Aquarids run from late April through late May, but their peak falls overnight on May 5 and 6. They’re fast, bright, and Read More...
The gene behind congenital deafness, and how a single shot is fixing it
BY THE OPTIMIST DAILY EDITORIAL TEAM A girl born without the ability to hear was having everyday conversations with her mother four months after a single injection into her inner ear. She was seven years old. The treatment did not give her a hearing aid or implant. It gave her a gene she had Read More...
Finland’s new bridge was built for everyone except drivers
BY THE OPTIMIST DAILY EDITORIAL TEAM When Helsinki needed to connect a growing island suburb to the city center, the planners made a decision that would be unusual in most countries: they never considered building a car lane. The Kruunuvuori Bridge, which opened to the public this past Read More...
Friction-maxxing and the case for a less convenient life
BY THE OPTIMIST DAILY EDITORIAL TEAM Something about the phrase “friction-maxxing” struck a nerve. When Kathryn Jezer-Morton, a columnist for New York magazine’s The Cut, published an essay in December 2025 naming the feeling of wanting to push back against frictionless technology, the Read More...
The Bahamas eliminates mother-to-child HIV transmission
BY THE OPTIMIST DAILY EDITORIAL TEAM The Bahamas became the 12th country or territory in the Americas to receive WHO certification for eliminating mother-to-child transmission of HIV, joining a regional cohort that now accounts for more than half of all such certifications worldwide. The Read More...