A balanced diet does more than provide calories. Food supplies the protein, carbohydrates, fats, vitamins, minerals, fiber and other nutrients the body needs to function, maintain tissues and support health over time. A healthy eating pattern is also associated with a lower risk of several chronic diseases, including cardiovascular disease and type 2 diabetes. Research…
A product can cross multiple borders before it reaches the person who buys it. Its raw materials may come from one country, its components from several others, its final assembly from another, and its journey to consumers may pass through ports, warehouses, distributors, and transportation networks spread across the world. That interconnected system is a…
Sleep affects far more than how tired you feel the next morning. Getting enough good-quality sleep supports brain function, mood, metabolism, immune function, cardiovascular health and daytime safety. While you sleep, your brain and body remain active. Different stages of sleep help support memory and learning, regulate important biological processes and allow the body to…
Antioxidants are compounds that help protect cells from damage caused by highly reactive molecules called free radicals. Your body produces some antioxidants on its own, while others come from foods such as fruits, vegetables, whole grains, nuts and seeds. But antioxidants are often misunderstood. They are sometimes described as substances that simply “fight” aging or…
Alcohol is one of the most widely used psychoactive substances in the world. It is legal and socially accepted in many countries, but that does not mean it is harmless. Alcohol affects the brain almost immediately after it enters the bloodstream and can influence coordination, judgment, memory, mood and reaction time. With repeated or heavier…
Large language models can answer questions, write articles, generate code and analyze information in seconds. But behind that convenience is a physical infrastructure that consumes electricity, requires cooling and depends on enormous data centers. That has created a growing question around artificial intelligence: How much does using AI actually cost the environment? The answer is…
Economic inequality is often described as a gap between rich and poor. That is true, but incomplete. The deeper issue is how differences in income, wealth, education, health, location, family background, and economic opportunity interact over time. A household with a higher income can save more, acquire assets, withstand an unexpected expense, invest in education,…
Almost everything people “know” about Jesus arrives through worship, not through a file in an archive. That is not a slight. It is the first fact a historian has to live with. The man at the centre of Christianity left no letters that survived in his name. No Roman court transcript of his trial has…
Blockchain is usually sold as a new kind of trust. The more useful question is smaller: What problem does a chain of signed blocks actually solve, and where does that design stop helping? Bitcoin, launched in 2009, used a public ledger to let people transfer a digital token without relying on a bank to maintain…
Few scientific pursuits carry as much long-term potential as nuclear fusion. Often described as the process that powers the Sun and stars, fusion represents one of humanity’s most ambitious goals: generating large-scale, clean energy by combining light atomic nuclei. While still in the experimental and demonstration phase, fusion research has made encouraging progress in recent…