Browse Reference Articles
491 to 500 of 988 articles
-
Neurotransmitter
Neurotransmitters are chemicals that are used to relay, amplify and modulate electrical signals between a neuron and another cell. Substances that act as neurotransmitters can be roughly categorized ... > more -
Influenza pandemic
An influenza pandemic is a large scale epidemic of the influenza virus, such as the 1918 Spanish flu. The World Health Organization (WHO) warns that there is a substantial risk of an influenza ... > more -
Alzheimer's
Alzheimer's Research
Healthy Aging
Dementia
Disorders and Syndromes
Attention Deficit Disorder
Alzheimer's disease
Alzheimer's disease (AD), also known simply as Alzheimer's, is a neurodegenerative disease that, in its most common form, is found in people over age 65. Approximately 24 million people worldwide ... > more -
Microorganism
A microorganism (also spelled as microrganism) or microbe is an organism that is microscopic (too small to be seen by the human eye). The study of microorganisms is called microbiology. ... > more -
Yellow fever
Yellow fever (also called yellow jack, black vomit, or sometimes American Plague) is an acute viral disease. It is still an important cause of hemorrhagic illness in several African and South ... > more
Search ScienceDaily
Number of stories in archives: 137,124

