Smiley Movement

Positive Headlines to Make You Smile: 20 July 2026

10:30, 20 July 2026

Words by Zane Dedlow, Videographer and Content Creator, London

From cleaner rivers and healthier lifestyles to thriving coastal ecosystems, this week's stories are a reminder that positive change is happening all around us. We've rounded up three uplifting headlines that highlight how people, science, and nature are working together to build a healthier future for both our planet and ourselves.

🌊 Paris has transformed one of its most famous rivers

The River Seine has undergone an incredible transformation after decades of restoration efforts.

Once heavily polluted, the iconic river has seen dramatic improvements in water quality thanks to major investments in wastewater treatment, stricter environmental regulations, and large-scale clean-up projects. The restoration has brought fish and wildlife back to the river, while sections have even reopened for public swimming for the first time in generations.

It's a remarkable example of how long-term environmental action can breathe new life into urban waterways.

🥗 A healthy diet may help reduce dementia risk

New research is adding to the growing evidence that what we eat could have a significant impact on brain health.

Scientists have found that people who consistently follow a healthy, balanced diet are less likely to develop dementia later in life. Diets rich in fruit, vegetables, whole grains, healthy fats and lean proteins were associated with better cognitive health, while highly processed foods were linked to a greater risk.

The findings reinforce the importance of healthy eating—not just for our bodies, but for our brains too.

🌿 Mangrove forests are making a comeback

There is encouraging news for one of the world's most important coastal ecosystems.

Global research suggests that mangrove forests are beginning to recover in many parts of the world thanks to restoration projects, stronger conservation efforts, and increased awareness of their environmental value. Mangroves provide vital habitats for wildlife, protect coastlines from erosion and storms, and store vast amounts of carbon, making them one of nature's most effective climate solutions.

Their recovery is welcome news for biodiversity, coastal communities, and the fight against climate change.

There you have it — this week's positive headlines making the world a little brighter.

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