Introduction Having high blood pressure, or hypertension, is a medical condition. Two digits represent the reading of one's blood pressure. The systolic number is the highest, and the diastolic number is the lowest. For example, 120/80 mmHg signifies that the systolic (top number) and diastolic (bottom number) pressures are 120 and 80, respectively. A lack of treatment for high blood pressure (hypertension) can lead to more serious health issues, including heart disease and stroke, kidney failure, and even death. The following are the most common symptoms of high blood pressure Images Coming soon Physical Symptoms 1. Excessive sweating You ... Read More

Introduction Hyperparathyroidism is an overproduction of parathyroid hormone (PTH) by the parathyroid gland. This causes a disturbance in the body's regulation of calcium and phosphorus. Hyperparathyroidism can be caused by one of two primary conditions− hyperplasia, in which extra parathyroid tissue is produced in the body; or adenoma, in which one or more benign (non-cancerous) tumors form on the parathyroid glands. The end result is that your body has too much PTH, which causes increased levels of calcium to build up in the blood, resulting in an abnormally high level of calcium in the blood. In most cases, hyperparathyroidism ... Read More

Introduction Hydroponics is derived from the Greek words "hydro" (water) and "ponos" (labor). Hydroponics is a subset of hydroculture, which is the method of growing plants without soil by using mineral nutrient solutions in a water solvent. There are many different methods of hydroponics. Some of the most common methods involve adding nutrients to water and then placing the plant into the water solution. The solution is then placed in a container designed to hold it, such as a pot or a tank. A sub-method involves using clay pellets instead of soil to grow the plants. These clay pellets ... Read More

Introduction The hydrosere is a series of plant communities that occurs on the shore of a lake or pond. Each community has its own unique characteristics and includes plants adapted to grow in the specific conditions at that location. The sequence begins with emergent aquatic plants, followed by submerged aquatic plants, floating aquatic plants, and finally emergent species again. As water levels change during the growing season and between years, different species will become dominant at different times. Changes in water level can also be affected by other factors such as flooding or drought. Succession is the process by ... Read More

Introduction The human respiratory system is a system of organs, tissues, and cells that transport oxygen from the atmosphere to our blood and release carbon dioxide from our blood to the atmosphere. It's made up of several organs that work together to get oxygen into your lungs and then into your red blood cells. Images Coming soon The respiratory system is composed of two main parts− the conducting zone and the gas-exchange zone. The conducting zone is made up of the nose, nasal cavity, pharynx, larynx (voice box), trachea (windpipe), bronchial tree, and lungs. The conducting zone helps air ... Read More

Introduction The human population is the measure of people who live in a certain region or country. The population can be recorded by the number of people living in a particular area or place (such as a city, state, or country), and by the density of the population in that area. The population is determined by a country's birth rate, death rate, immigration, emigration, and other population factors. Human population growth is the increase in the number of humans in a population over time. The growth of the human population has been making great strides since the beginning of ... Read More

Introduction Human Physiology, a part of biology concerned with the functioning of living organisms and their parts, is studying how the body works. The body's structure, function, and chemistry are all closely related to one another. The body comprises many systems that work together to maintain homeostasis. These systems are made up of organs and organ systems that work together in order to maintain a stable internal environment despite changes in external conditions. Human physiology is a large subject that deals with the functions of animals, including humans. It includes how these animals' bodies work, what is going on ... Read More

Introduction Human insulin is a hormone produced in the pancreas. Its main function is to lower blood glucose levels after meals by enabling cells to absorb glucose from the bloodstream. Insulin also promotes the growth and storage of fat and protein. Insulin is produced by beta cells in the pancreas. The pancreas is an organ located near the stomach that secretes digestive enzymes (which break down food) and hormones, including insulin. Insulin is essential for life as it enables cells to absorb glucose from the bloodstream and convert it into energy. In non-diabetics, insulin stimulates receptors on muscle, fat, ... Read More

Introduction Human impact on the environment is something that has been happening since the dawn of time. There have been some positive impacts (such as agriculture) and there have also been negative ones (such as pollution). Throughout history, there have been good and bad people who have done good and bad things to the environment. The effects of human activity on the environment are massive. There are many different ways that humans affect the planet− one way is by changing natural habitats so that they become unsuitable for wildlife. Humans also impact the environment by using resources such as ... Read More

Introduction The human heart is the center of the cardiovascular system and pumps blood to all body parts. The heart weighs about 300 grams (10.6 ounces) and is a hollow, muscular organ about the size of a fist. It has four chambers− two upper atria and two lower ventricles. A layer of muscle tissue called the myocardium lines the inside walls of the heart chambers and separated them from each other. The muscle tissue also forms thick layers around each chamber wall that contract to pump blood through the heart. Position of Heart in the Human Body The heart ... Read More