Medical Science

The majority of people have eye colors that are brown. blue, gray, hazel, as well as green eye, are only found in those who have European heritage. In spite of being of European heritage, gray eyes aren’t commonplace and are seen in those from northern or eastern European origins. Are Black an eye-color? Contrary to what … Read more

In an adult human body, there are about 5.5 liters of blood. These liters form the most amazing transportation system imaginable. The blood circulates through the body so that it reaches every one of the billions of cells that make up the body tissues. It brings food and oxygen to each cell,  carries away waste … Read more

Man has two sets of teeth: a first (primary), or baby set, and a second, or permanent, set. In a full set of teeth, there are four types, and each type has a special job. The “incisors”, in the center of the mouth, cut food. The “cuspid on either side of the incisors,  tear food. The  … Read more

Urine samples for drug testing are typically refrigerated at temperatures between 2°C to 8°C and can be stored for up to 72 hours before testing. However, some tests may require immediate testing or frozen storage for longer storage periods. Factors Affecting the Duration of Urine Storage for a Drug Test Several factors can affect the … Read more

Most of us feel upset if we skip just one meal, and if we tried to go without food for 12 hours we would really uncomfortable. Birt, there are some people who seem able to “fast” for very long periods. Various records are claimed for long fasts, but in most cases, there is no medical … Read more

Diphtheria is a serious disease. It is caused by bacteria, and illness starts a few days after the bacteria enter the body. The bacteria usually enter the body through the mouth and nose and infect the throat first. Usually, there is a sore throat, fever, and a   feeling of being unwell. A grey or pale membrane appears … Read more

The admit human heart is about the size of a clenched fist. Yet it generates enough energy in 24 hours to lift 68,0£O kilograms, or the weight of a locomotive, 30 centimeters off the ground. It pumps about 16,360 liters of blood in 24 hours. This amazing organ,  which only weighs 225 to 340 grams, … Read more

Seeing, of course, is done by the eye. But our brain plays a very important part of the process we call seeing. Mechanically, this is what happens. Light waves pass through the pupil of the eye and form an image on the retina. The retina is a carpet-like screen of cells at the back of … Read more

Human often expose their bodies to the sun to get a ‘tan”. Very few people realize that sunlight has many important effects on the skin. The most obvious is to produce redness or sunburn. This is caused by ultraviolet light. It transforms “histidine”, a substance contained in the skin, into a substance that opens up … Read more