Dreams occur mostly during a sleep stage called REM (Rapid Eye Movement) sleep, when the brain is highly active even though the body is at rest. During this time, parts of the brain related to memory, emotion, and imagination light up  creating the strange, vivid experiences we call dreams. Some scientists believe dreaming helps the brain process

Vaccines work by teaching your immune system how to fight off specific viruses or bacteria  without making you sick. They usually contain a harmless part of the germ, like a weakened version or just a small protein. When the vaccine enters your body, your immune system reacts by creating antibodies, which are like special soldiers designed to atta

copyright is a type of digital money that exists only online. Unlike traditional currencies like the dollar or euro, it isn’t controlled by a central bank. Instead, it runs on a decentralized system called blockchain, which is like a public ledger that records all transactions. Bitcoin, created in 2009, was the first copyright  and today there a

Bees play a vital role in growing much of the food we eat  not by planting or watering, but through pollination. As bees travel from flower to flower collecting nectar, they carry pollen between plants, helping them reproduce. This simple act allows fruits, vegetables, and nuts to grow. In fact, around one-third of the world’s food crops depend