31 January 2014, 11:44 PM ET
The Ishtar Gate was one of eight gateways that provided entry to the inner city of Babylon.
31 January 2014, 12:37 AM ET
Louis Pasteur was a French chemist who proved that germs cause disease, developed vaccines for anthrax and rabies and created the process of pasteurization.
31 January 2014, 12:32 AM ET
Appendicitis is inflammation of the appendix. It is a serious illness and can be life threatening if not treated in time.
30 January 2014, 09:28 AM ET
Magnesium supplements are touted as helping people with many different health conditions, however, does the science support these claims?
30 January 2014, 12:44 AM ET
Complex numbers are numbers that consist of two parts — a real number and an imaginary number.
30 January 2014, 12:34 AM ET
The gallbladder is a small organ that is used to store bile, which breaks up the fat in food.
30 January 2014, 12:29 AM ET
Atrial fibrillation is a heart condition caused by irregularities in the cardiac electrical signal. The condition can result in stroke or heart failure, but treatment is available.
29 January 2014, 01:38 AM ET
Occupational therapists help patients conduct the activities of daily life that give them meaning.
29 January 2014, 01:32 AM ET
Diclofenac is often used to treat pain, tenderness, swelling and stillness resulting from various types of arthritis.
29 January 2014, 12:02 AM ET
Semantic memory is the recollection of nuggets of information we have gathered from the time we are young.
28 January 2014, 01:42 AM ET
Short-term memory loss occurs when a person can remember incidents from 20 years ago but is fuzzy on the details of things that happened 20 minutes prior. Medical conditions and injuries can cause short-term memory loss.
28 January 2014, 01:37 AM ET
Zofran: Dosage, Side Effects & Pregnancy
23 January 2014, 11:15 PM ET
People who have stigmata exhibit wounds that duplicate or represent those that Jesus is said to have endured during his crucifixion. Whether they appear spontaneously or are self-inflicted is difficult to verify.
23 January 2014, 11:07 PM ET
The Tower of London is a 900-year-old castle and fortress in central London that is notable for housing the crown jewels and for holding many famous and infamous prisoners.
23 January 2014, 12:14 AM ET
Portuguese explorer Ferdinand Magellan led the first voyage around the world.
22 January 2014, 11:10 PM ET
Acetaminophen is an over-the-counter pain reliever works by elevating the pain threshold so that only more intense pain is felt.
22 January 2014, 08:51 PM ET
A kidney stone is a hard mass that forms in the kidneys from minerals in the urine, and if large enough, can cause serve pain.
22 January 2014, 12:21 AM ET
Wood stoves, which have been around for hundreds of years, have been updated for the 21st century.
22 January 2014, 12:04 AM ET
An imaginary number is a number that, when squared, has a negative result.
17 January 2014, 01:47 AM ET
Martin Luther King Jr. was a civil rights leader who fought for racial and economic justice. His oft-quoted "I Have a Dream" speech made an incredible impact on the country’s racial, cultural and intellectual landscape.
15 January 2014, 10:54 PM ET
A real number is a value that represents a quantity along an infinite number line. They are, in fact, pretty much any number that you can think of.
14 January 2014, 06:54 PM ET
Here are some fun ways to demonstrate principles of fluid dynamics.
10 January 2014, 09:40 PM ET
America was named after Amerigo Vespucci, an explorer who first recognized that the lands in the New World were previously unknown continents.
10 January 2014, 09:41 AM ET
Vitamin D, sometimes called "the sunshine vitamin," is linked with many health benefits. But how much do you really need? And can too much vitamin D be harmful?
08 January 2014, 04:00 PM ET
Atorvastatin is a prescription medicine used to treat high cholesterol. It is sold under the brand name Lipitor.
07 January 2014, 11:34 PM ET
Clindamycin is a prescription antibiotic commonly used to treat acne, vaginal infections and certain bacterial infections.
07 January 2014, 11:23 PM ET
Ogopogo — a creature said to lurk in Canada's Lake Okanagan — is the most likely and best documented of all lake monsters.
06 January 2014, 07:54 PM ET
An X Prize is an award given to the person or organization that achieves specific goals set forth in competitions that are intended to spur innovation and technological development that could benefit mankind.
03 January 2014, 07:02 PM ET
Gabapentin is an anticonvulsant used to control specific types of seizures.
03 January 2014, 06:58 PM ET
Bikram yoga is a type of yoga that involves a sequence of set poses and is usually done in a hot room at or above body temperature.
02 January 2014, 06:45 PM ET
Bed bugs are stubborn parasites that leave itchy and unsightly bites, though they don't transmit disease or pose any serious medical risk.
27 December 2013, 05:31 PM ET
Heart rate monitors provide immediate feedback on how hard you are working out so that you can make adjustments to get the greatest benefit from your exercise regimen.