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Allergy
Cold and Flu
Sleep Disorder Research
Diseases and Conditions
Insomnia Research
Infectious Diseases
Nasal congestion
Nasal congestion is the blockage of the nasal passages usually due to excessive secretion of mucus that is caused by a virus and typically resolves spontaneously within a week. It is also known as ... > more -
Doppler effect
The Doppler effect, named after Christian Andreas Doppler, is the apparent change in frequency or wavelength of a wave that is perceived by an observer moving relative to the source of the waves. The ... > more -
Minimally invasive procedure
A minimally invasive medical procedure is defined as one that is carried out by entering the body through the skin or through a body cavity or anatomical opening, but with the smallest damage ... > more -
Heart Disease
Today's Healthcare
Healthy Aging
Diseases and Conditions
Stroke Prevention
Attention Deficit Disorder
Cardiac arrest
A cardiac arrest is the cessation of normal circulation of the blood due to failure of the ventricles of the heart to contract effectively during systole. The resulting lack of blood supply results ... > more -
Extraction (dental)
A dental extraction is the removal of a tooth from the mouth. Extractions are performed for a wide variety of reasons. Tooth decay (properly known as dental caries) that has destroyed enough tooth ... > more
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