Kids who ate more processed food had stronger brain reward responses

1Processed food was linked to stronger brain reward responses in kids

The problem. Children in the US get about two-thirds of their calories from ultra-processed food. Parents wonder what this means over time, but it is hard to see inside a growing brain and body.

What they found. Researchers in the US followed 46 children aged 7 to 10 for one year. All were a healthy weight at the start. Those who ate more ultra-processed food (factory-made food with many added ingredients) showed stronger brain reward responses to food pictures. These responses were linked to bigger gains in body fat a year later.

Try this. Notice which foods are easiest to reach in your kitchen, and move one simple food, like fruit, to the front.

How sure is this? A small study of 46 children over one year. It shows a link, not proof that the food led to the changes.

Source: ScienceDaily¹

Plan simple meals for the week →

2A sulfur compound helped a muscle-repair protein grip better in the lab

The problem. Many people worry about losing muscle as they get older. Scientists want to know whether the body's own muscle-repair signals change with age, and how.

What they found. In lab tests, a sulfur compound called LASSS made a muscle-repair protein attach to its receptor more than twice as strongly. In mice, it also reduced chemical damage to that protein. The team did not test muscle strength.

Try this. Look up one thing you assumed about how muscles stay strong, and see what is actually known.

How sure is this? Lab and mouse work only. Stronger binding does not show better muscle repair, and tests in aging animals are still needed.

Source: ScienceDaily²

Plan a workout that fits your week →

3Countries that see manhood as easy to lose tend to be less happy

The problem. Many people feel they must keep proving themselves to be accepted. It is hard to know whether such beliefs, shared across a whole society, affect how happy people are.

What they found. Researchers at Boston College used a survey of beliefs about manhood from over 33,000 college students in 62 countries. They compared it with national happiness scores for the 59 countries in both sets of data. Where people more strongly believed manhood is hard to earn and easy to lose, people tended to be less happy.

Try this. Tell someone close to you one thing you admire in them that has nothing to do with being tough or winning.

How sure is this? A country-level comparison. It shows a link, not cause, and lower national income may itself help create these beliefs.

Source: Greater Good (UC Berkeley)³

Notice how you are doing →

4A student made chocolate to spotlight climate-ready cocoa research

The problem. Cocoa farms face a changing climate, and the research that could help is easy to overlook. A centre that protects cocoa plants has an uncertain future after funding was withdrawn.

What they found. Maha Khan, a master's student at the University of Reading, picked cocoa pods from its greenhouses. She used British milk and sugar to make just six chocolate bars. She hoped to spotlight a centre that protects more than 300 types of cocoa plant from pests and disease.

“It's great to be the person who joined the dots.”

Maha Khan, master's student in food security at the University of Reading

Try this. Think of two things you already have, such as a skill and a friend's need, and picture how they might fit together.

How sure is this? This is one student's project, told as a story, not evidence. The centre's future is still uncertain after US funding ended in March 2025.

Source: Positive News⁴

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