Human blood has many different cells, substances and chemicals floating within it, all of which play different roles in maintaining and restoring health. One of these components is white blood cells, which are also known as leukocytes. These cells help to protect the body and fight infections. Too much or too little of >> Read More ...
Human lice are tiny insects that live on the body. It differs from lice found on other animals and the species of lice that affect different parts of the body may also vary. Head lice is by far the most common and can affect both adults and children. Pubic lice is another type that is mainly a problem for adults. Although >> Read More ...
There are many different viruses that cause cold and flu-like symptoms. These viruses tend to target the respiratory tract (nose, throat, larynx, trachea, bronchi), with some infections focused on the upper respiratory tract while others affect the lower respiratory tract. The respiratory syncytial virus (RSV) is one of >> Read More ...
Most of us experience an upset stomach every now and then, and usually it is not a cause for concern. Although we tend to refer to it as indigestion or by other common everyday terms like a queasy stomach, the underlying problem may not always be due to a digestive problem. Sometimes a queasy stomach is more than just >> Read More ...
Food is essential for sustaining life as it provides the fuel, building blocks and substances needed for various biochemical processes. Without food, death is a certainty although the human body can survive for 2 to 3 weeks without food. However, most of us would not be able to function at our best without eating every few >> Read More ...
Tuberculosis is a serious health problem globally but uncommon in most developed countries. There has been a steady decline in tuberculosis cases in the United States and the disease causes less than 600 deaths a year. Nevertheless tuberculosis is still a global health concern as the disease can be easily spread and the >> Read More ...
Sinus pain is a common nose-related problem and usually indicates that the sinuses are inflamed. Most of the time this is due to an infection, which often starts with the flu or a common cold and continues thereafter. Sinus pain can contribute to headaches and eye pain. It can also affect a person’s ability to >> Read More ...
Blood clots can be life-saving when it plugs up a broken blood vessel but it can also be deadly when it forms inside an intact blood vessel. You may have a deadly blood clot forming or flowing through your bloodstream without any symptoms. It is only when this blood clot blocks most of the blood supply to an organ that the >> Read More ...
Nerves run throughout the body, carrying signals to and from the brain and spinal cord. When there is any injury to the body there is always a risk that a nerve may be damaged. This can be either temporary or permanent depending on the type and severity of nerve injury. It may give rise to varying signs and symptoms >> Read More ...
The movement of air in and out of the lungs and airways causes a sound that we refer to as the breathing sounds or respiratory sounds. When inhaling, the air flowing from the environment into the lungs or mouth, down the airways and to the lungs is known as the inspiratory or inhalation respiratory sound. Air flowing out >> Read More ...
