For anyone who is trying to understand shivering, comparing it to sweating may be the best method. Shivering is sometimes described as the body’s natural, automatic reaction to a particular situation, just as sweating is. They happen to be exact opposites, however. When we sweat the body is usually trying to produce moisture that evaporates [...]

It’s true that people cry in many different situations, though most people associate crying with being sad. It may help to first understand the idea of “tears.” This liquid from specific ducts near our eyes helps keep the eyes lubricated and the surface of the eyes clean. When we blink we also assist the spread [...]

Blood type differs among individuals much as body type, hair color and eye color do. We get our blood types from our parents and grandparents (an inherited trait). In simple terms, different types of blood are caused by molecules called antigens. These are the key factor in starting the immune response at the blood level. [...]

People in the so-called “developed” countries have a hard time avoiding the term E. coli because this type of bacteria has been written about in newspapers, talked about on television and blogged about on the World Wide Web. People in less-fortunate circumstances have more direct contact with this dangerous form of bacteria.
Individuals have eaten [...]

From the beginning, we should understand that exercise is necessary for nearly all people. Some physical activity is essential for human beings to remain healthy. In many cases, we will sweat because of this physical exertion. It’s a natural result of activity for human beings.
The truth is there is a happy medium when it comes [...]

As a general rule, gas and flatulence is a sign of improper digestion. This can be caused by putting certain foods into our bodies or it may be the result of our bodies not digesting food in the proper, natural way. In either case, it’s important to understand why some foods give us gas so [...]

Answering this question with the usual, “Because they are tired,” doesn’t really get at the heart of the matter. Why do babies sleep for half the day or even more (usually in shorter sections of three or four hours)? There are at least two key reasons.
Babies will sleep more if their hunger is satisfied [...]

It’s important to understand why smoking is unhealthy and it is important to have correct information on how to quit the habit. Extensive research and medical records gathered over several decades shows a direct link between tobacco use and such illnesses as cancer, lung disease and serious heart disease. Thousands die every year from disease [...]

Anyone who has experienced a cut, scrape or other open wound to the skin has also experienced a scab. It’s a good thing that scabs form on the wound site because they serve to protect the sensitive area from bacterial infection. This efficient covering also helps keep the sensitive tissue clean while it heals. Scabbing [...]

People have fasted for centuries, for many different reasons. In most cases, people abstained from eating for health reasons or because of religious beliefs. Depending on the reason for fasting, people often did not drink liquids other than water. In extreme cases, even this necessary element was eliminated.
While many people fast according to strict [...]