References
04 March 2014, 01:09 AM ET
Albuterol is a prescription medicine prescribed for patients struggling with asthma, emphysema, bronchitis and other lung diseases.
04 March 2014, 01:01 AM ET
Gynecomastia is the growth of breast tissue in males. It's a benign condition that usually results from an imbalance in the sex hormones estrogen and testosterone.
28 February 2014, 06:35 PM ET
Skara Brae is a well-preserved prehistoric village on the west coast of Orkney, Scotland. Visitors can still sit on the furniture in the stone huts.
28 February 2014, 10:47 AM ET
Use this body mass index (BMI) calculator to estimate your body fat and to see if you’re considered underweight, normal, overweight or obese.
27 February 2014, 11:50 PM ET
Augmentin is a prescription antibiotic that is used to treat bacterial infections.
27 February 2014, 12:33 AM ET
Memory involves encoding, storing, retaining and subsequently recalling information and past experiences.
26 February 2014, 12:47 AM ET
Rattlesnakes are found throughout North and South America. Their distinctive rattle warns intruders to stay away!
25 February 2014, 11:55 PM ET
Episodic memory is a person’s unique memory of a specific event; it will be different from someone else’s recollection of the same experience.
25 February 2014, 11:35 PM ET
Guan Yu was a Chinese military general whose martial prowess was so great that, after his death, he was deified as a god.
25 February 2014, 02:16 AM ET
Copperhead snakes are common in North America, and have the distinction of biting more people in the United States than any other snake.
25 February 2014, 01:48 AM ET
Johannes Gutenberg revolutionized printing technology by adapting the presses used for winemaking.
22 February 2014, 03:50 AM ET
The cottonmouth snake, also know as water moccasin, is North America's only poisonous water snake.
22 February 2014, 03:46 AM ET
The Devonian Period occurred from 416 million to 358 million years ago. It is often known as the “Age of Fishes."
22 February 2014, 03:42 AM ET
As the name implies, procedural memory stores information on how to perform certain procedures, such as walking, talking and riding a bike, without having to consciously think about them.
21 February 2014, 10:08 AM ET
Selenium supplements are taken by people who want to prevent cancer, heart disease, memory loss and diabetes. But does taking selenium work? Here's a look at what the science says.
21 February 2014, 03:12 AM ET
These simple plant science experiments will sharpen your little ones’ interest in seeds and plants.
21 February 2014, 03:05 AM ET
The black mamba is one of the fastest and deadliest snakes in the world. Two drops of its venom can kill a person.
21 February 2014, 02:55 AM ET
Lithium medications are used to treat symptoms of bipolar disorder, by possibly preventing episodes of mania.
21 February 2014, 02:41 AM ET
Bariatric surgery is an operation on the stomach and intestine used to treat obesity.
20 February 2014, 12:42 AM ET
Risperdal (generic name risperidone) is an antipsychotic drug prescribed to treat schizophrenia, bipolar disorder and some behavioral problems in children with autism.
20 February 2014, 12:30 AM ET
Cobras are large, venomous snakes with a trademark hood. They hiss and spit and can raise the upper part of their bodies high enough to look you in the eye.
20 February 2014, 12:26 AM ET
Some people in Taos, New Mexico, say they hear an unusual droning sound, or buzzing, or as it has come to be called, the "Taos Hum." Pinpointing its source has not been easy.
19 February 2014, 09:52 PM ET
The Silurian Period occurred from 443 million to 416 million years ago. It was a time of great environmental changes on Earth and saw the first evidence of life on land.
19 February 2014, 01:28 AM ET
The Common Core State Standards Initiative is an effort to prepare every student for college or the workforce.
19 February 2014, 01:24 AM ET
Diabetes is a metabolic disease marked by high blood glucose, also known as blood sugar.
15 February 2014, 12:25 AM ET
Many notable figures — not only Thomas Edison — contributed to the development of this revolutionary technology.
12 February 2014, 07:48 PM ET
The Precambrian was the first super eon of Earth’s history, lasting from about 4.6 billion to 542 million years ago.
12 February 2014, 07:42 PM ET
Implicit memory uses past experiences to remember things without thinking about them, like how to ride a bike or button a shirt.
11 February 2014, 05:16 PM ET
STEM is a curriculum based on the idea of educating students in four specific disciplines — science, technology, engineering and mathematics — in an interdisciplinary and applied approach.
11 February 2014, 05:08 PM ET
The Triassic Period occurred between 251 million and 199 million years ago. It was a time when life outside of the oceans began to diversify.
10 February 2014, 07:05 PM ET
Genghis Khan and his successors conquered vast territories, from China to eastern Europe.
07 February 2014, 07:27 PM ET
A subduction zone is a collision between two of Earth's tectonic plates, where one plate sinks into the mantle underneath the other plate.