A pathogen is any organism or agent that cause disease in another living thing (its host). Your body contains trillions of good bacteria that help with digestion and immunity, but pathogens are biological invaders that disrupt your systems and make you sick. They are referred to as germs, that spread through various ways, such as … Read more
White blood cells, or leukocytes, are soldiers of your immune system. Unlike red blood cells, which stay within your blood vessels to carry oxygen, white blood cells can exit bloodstream to reach your tissues and attack invading pathogens like bacteria, viruses, and fungi. Five Main Types White blood cells are categorized into two main groups … Read more
In world of public health, before we can figure out why a disease is spreading, we first have to figure out what is actually happening. This is where descriptive epidemiology comes in. Think of it as investigative phase of medicine. It’s process of gathering facts, mapping territory, and a clear picture of a health event. … Read more
Your immune system isn’t a single organ; it’s a network of cells and proteins constantly patrolling for trouble. While there’s no single immunity score, these five signs indicate your system is robust and resilient. 1. You Recover Quickly from Illness Having a strong immune system doesn’t mean you never get sick. In fact, catching a … Read more
In public health, herd immunity (also known as population immunity) is point at which population becomes protected from an infectious disease. This happens when enough people have developed a defense—either through vaccination or previous infection—that virus or bacteria find it increasingly difficult to spread. When most people are immune, the chains of transmission are broken, … Read more
Immunity is your biological defense system—a complex network of cells, tissues, and organs that work together to identify and neutralize foreign invaders while keeping your own healthy cells intact. Type There aree two main type, Innate and Adaptive immunity. 1. Innate Immunity This is also called as non-specific immunity. It is the basic immunity you … Read more
For decades, age of 18 was legally and socially considered threshold of adulthood. However, neuroscience offers a different perspective. Prefrontal cortex (PFC)—doesn’t finish develop fully until your mid-to-late 20s. What is Prefrontal Cortex? It is located behind your forehead, prefrontal cortex is described as executive function, responsible for high level cognitive processes that separate humans … Read more
Prefrontal Cortex (PFC) is located at front of frontal lobe, this region handles complex executive functions that separate deliberate action from primitive instinct. What Does PFC Actually Do? PFC is focused on high level task management. Its primary responsibilities include: Executive Function: It allows you to plan for the future, set goals, and switch between … Read more
Ever felt like your brain is a browser with fifty tabs open, three of them are frozen, and you have no idea where music is coming from? You aren’t alone. Human mind is a relentless engine of ideas, worries, and did I leave stove on? moments. But when it comes to actual number of thoughts … Read more
Red blood cells (RBCs), also known as erythrocytes, are body’s primary vehicle for oxygen delivery. Red blood cells are microscopic, disc-shaped cells found in blood of vertebrates. They are unique human cells because, in mature state, It lack nucleus and organelles. The empty space is packed with hemoglobin, a complex protein that binds to oxygen. … Read more