Today’s Solutions: December 18, 2025

New data on the link between vitamin D and male fertility has been presented at the European Congress of Endocrinology (ECE) in Lisbon. The new results add to our understanding of the effects of low vitamin D levels on testosterone levels and whether vitamin D supplementation could help improve fertility in both sexes. Vitamin D, a hormone produced by the body through exposure to sunshine or obtained from foods such as fatty fish and egg

Print this article
More of Today's Solutions

New method uses sound waves to map soil health, stop famine, and restore farm...

BY THE OPTIMIST DAILY EDITORIAL TEAM Across the world, soil scientists are trading in their shovels for something unexpected: seismic sensors. In a breakthrough ...

Read More

This simple 15-minute mindset exercise can ease anxiety, science shows

BY THE OPTIMIST DAILY EDITORIAL TEAM A growing body of research is revealing how a short, simple activity that is done in just 15 ...

Read More

3 habits of the happiest people

Think of the happiest people you know. Do you find yourself often wondering what they are doing to maintain a general level of joy? ...

Read More

Changemakers of the week: GRuB and SparkNJ

Every day on the Optimist Daily, we report on solutions from around the world. Though we love solutions big and small, the ones that ...

Read More