28 April 2016, 12:02 AM ET
Grapes are versatile fruits used in a wide range of popular foods. They are also packed with nutrients and antioxidants.
27 April 2016, 12:47 AM ET
Whiplash is a neck injury that is common in car crashes, but it can also be caused during other types of accidents. In the United States, over 2 million people suffer from whiplash each year.
25 April 2016, 11:49 PM ET
Often maligned for being bland, cauliflower, when prepared properly, can be flavorful as well as healthful.
22 April 2016, 01:12 AM ET
The flu (short for influenza) is a respiratory virus that affects the throat, nose, bronchi and, sometimes, the lungs.
22 April 2016, 12:38 AM ET
A brain hemorrhage is bleeding in or around the brain. Brain hemorrhages occur when an artery in the brain bursts.
20 April 2016, 07:29 AM ET
Modern perception of Vikings often cast these historic people as savage raiders with horned helmets. In truth, the Scandinavian people were much more diverse in their motives and intentions.
20 April 2016, 12:41 AM ET
Cantaloupes are packed with vitamins A and C, and since they have high water content, they are low in calories.
20 April 2016, 12:30 AM ET
Bedwetting is common among young children. If it continues past age 7, there may be an underlying problem, and medical attention is recommended.
19 April 2016, 03:51 PM ET
These violent storms wreak havoc and cost lives. They can occur anywhere at any time.
18 April 2016, 07:14 PM ET
Grizzly bears are a type of brown bear that lives in the Pacific Northwest of the United States, Canada and Alaska.
15 April 2016, 03:34 PM ET
Properties, sources and uses of the element gold.
14 April 2016, 11:46 PM ET
Wildebeests, also called gnus, are large African antelopes.
14 April 2016, 11:38 PM ET
A number of different things can affect the color of your teeth and turn them yellow.
13 April 2016, 08:18 PM ET
Flesh-eating bacteria refers to any of several strains of bacteria that can cause necrotizing fasciitis, a severe infection that destroys muscles, skin and tissue.
13 April 2016, 02:36 PM ET
Sometimes thought of as dumb brutes, Neanderthals, a dead-end species in human evolution, used tools, buried their dead and controlled fire, among other intelligent behaviors.
12 April 2016, 08:02 PM ET
Ferrets are small, furry creatures with long tails and pear-shaped bodies. They are related to wolverines, ermines, minks and weasels.
12 April 2016, 03:05 PM ET
The greenhouse effect occurs when Earth's atmosphere traps solar radiation because of the presence of certain gases, which causes temperatures to rise.
11 April 2016, 01:38 PM ET
Matter is the “stuff” of the universe. There are five known phases, or states, of matter: solids, liquids, gases, plasma and Bose-Einstein condensates.
08 April 2016, 02:49 PM ET
A woman's emotional well-being and her mental outlook can also play important roles in pregnancy.
07 April 2016, 02:47 PM ET
The ears are complex systems that not only provide the ability to hear, but also make it possible to maintain balance.
05 April 2016, 11:55 PM ET
Elk are related to deer, caribou and moose. However, they are broader than deer, but not as massive as moose.
02 April 2016, 01:34 AM ET
Lemons are full of vitamins, minerals, phytonutrients and antioxidants, and they are especially good sources of vitamin C and folate.
02 April 2016, 01:16 AM ET
The term “amoeba” refers to simple eukaryotic organisms that move in a characteristic crawling fashion.
01 April 2016, 03:15 PM ET
The Zika virus is spread by bites of infected mosquitoes. It can be particularly dangerous to fetuses and newborns.
01 April 2016, 01:25 PM ET
Tutankhamun, popularly known as King Tut, was an Egyptian pharaoh more than 3,000 years ago.
31 March 2016, 07:53 PM ET
Donkeys, also called burros and asses, are found throughout the world. They look a lot like their cousins, but have long, floppy ears and tend to be stockier than horses or zebras.
30 March 2016, 09:28 PM ET
Protists are generally microscopic organisms — most with a single cell — that are not bacteria, animals, plants or fungi.
30 March 2016, 03:13 PM ET
Homo floresiensis, a diminutive hominin dubbed the hobbit, lived about 17,000 years ago on a remote Indonesian island.
29 March 2016, 11:31 PM ET
Most adders are vipers, but the term also refers to several different types of snakes.
29 March 2016, 08:21 PM ET
Estrogens are hormones that that are important for sexual and reproductive development, mainly in women. They are also referred to as female sex hormones.
29 March 2016, 12:35 PM ET
Whooping cough, also known as pertussis, is a bacterial infection of the respiratory tract that causes severe coughing. The disease is especially serious for babies.
28 March 2016, 04:52 PM ET
Ebola virus disease (EVD) is a rare and often-fatal infection caused by one of the five strains of the Ebola virus.