19 December 2013, 10:15 AM ET
Sold since 1897, Jell-O has occupied a familiar place on American dinner tables for decades. But what is Jell-O made of?
19 December 2013, 10:00 AM ET
There is no singular definition for clean eating. However, clean eating usually requires eating unprocessed and unrefined products, such as whole grains, lean meats and other foods without artificial ingredients.
16 December 2013, 05:07 PM ET
Drowsiness is a side effect of some antihistamines such as diphenhydramine (Benadryl) and doxylamine succinate (found in Nyquil). And because of their powerful sedating qualities, antihistamines are also the active ingredient in sleep aids.
16 December 2013, 04:40 PM ET
Touted as a promising alternative energy source for decades, solar panels crown rooftops and roadside signs, and help keep spacecraft powered. But how do solar panels work?
16 December 2013, 03:17 PM ET
Named for its use in the process of koshering (or removing blood from meat) in accordance with Jewish dietary laws, kosher salt has a large grain size and lower sodium content per tablespoon than most common table salts.
16 December 2013, 01:05 PM ET
Borax is a naturally occurring mineral powder, which consists of soft, colorless crystals. The mineral is an important compound of the element boron, and goes by a number of scientific names, including sodium borate and disodium tetraborate.
16 December 2013, 11:27 AM ET
While the Coca-Cola Company officially denies the presence of cocaine in any of its products — past or present — historical evidence suggests that the original Coca-Cola did, in fact, contain cocaine.
27 November 2013, 10:49 AM ET
Sweat plays a critical role in helping your body maintain its proper temperature. However, certain people sweat more than others, and excessive sweating can be an indication of an underlying health condition.
25 November 2013, 04:46 PM ET
People have produced distilled water since ancient times via distillation — the process of boiling water in a still, then collecting the condensed steam. Impurities get left behind when the water evaporates.
22 November 2013, 04:55 PM ET
Karma, a Sanskrit word that roughly translates to "action," is a core concept in some Eastern religions, including Hinduism and Buddhism.
22 November 2013, 04:39 PM ET
Ringworm is a fungal infection of the skin; it causes a scaly rash that can turn red and itchy. The name "ringworm" comes from the appearance of the rash, which can grow into a circle with wavy edges and a clear center.
21 November 2013, 05:18 PM ET
While most people are concerned about high blood pressure, low blood pressure can also be a problem. The National Institutes of Health considers blood pressure that's lower than 90/60 mm Hg a sign of low blood pressure, also called hypotension.
20 November 2013, 05:16 PM ET
The Paleo Diet is a modern attempt to replicate the diet of humans of the Paleolithic age. These ancient hunter-gatherers lived before the advent of agriculture and subsisted on lean proteins, eggs, fruits, vegetables, nuts and roots.
20 November 2013, 02:18 PM ET
Among the melee of conspiracy theories that have risen and fallen in the years since the 1963 assassination of President John F. Kennedy, one theory has remained the focus of intense debate: the single-bullet theory.
19 November 2013, 07:14 PM ET
Ley lines supposedly circle the globe, connecting monuments and sacred sites with undetectable "earth energies."
19 November 2013, 12:31 PM ET
While pregnancy might be the first thing that comes to mind when your period is late, it isn't the only reason menstruation might be delayed. There are many factors that may contribute to the disruption of a woman's menstrual cycle.
18 November 2013, 03:36 PM ET
To produce vodka, you must first ferment a foodstuff that contains sugar or starch, then distill the product to increase its alcohol content. But what is vodka made from?
15 November 2013, 12:45 PM ET
Transgender is a term describing people whose gender identity, gender expression, or behavior does not conform to that generally associated with the sex to which they were assigned at birth.
12 November 2013, 04:46 PM ET
Heterosexual, homosexual, bisexual — these aren't the only sexual orientations that exist in today's world. Pansexual is characterized by physical or romantic attraction to others, regardless of their gender identity or biological sex.
11 November 2013, 05:10 PM ET
People with arthritis might know the painkiller naproxen by its commercial name, Aleve. Also sold as Anaprox and Midol Extended Relief, naproxen helps treat the inflammation, swelling, pain and stiffness of arthritis.
11 November 2013, 04:59 PM ET
The human body is covered by a wide array of different bacteria, and these microbes don't typically cause any issues while on the surface of the skin. However, bacteria can cause cellulitis if they get into the body through a break in the skin.
30 October 2013, 01:36 PM ET
Obsessive compulsive disorder, or OCD, is a mental disorder characterized by recurrent and persistent thoughts (obsessions) and ritualistic behaviors (compulsions) that interfere with a person's daily life and relationships.
28 October 2013, 01:23 PM ET
Though it may be unsettling to humans, the act of eating feces, or coprophagia, is a common behavior among dogs. But why do dogs eat poop?
18 October 2013, 04:14 PM ET
Rather than powering down your smartphone or laptop when you board your next flight, try taking advantage of "Airplane Mode," a useful feature available on many portable electronic devices.
18 October 2013, 03:53 PM ET
Kneading is a common behavior seen in domestic cats, in which the feline pushes in and out with its front paws, alternating between left and right. It's unclear exactly why cats knead, but a number of hypotheses exist.
18 October 2013, 02:49 PM ET
Twitter has elevated the humble pound sign, or #, into a powerful social networking tool. The symbol is the basis of a hashtag, a way for users to organize Twitter messages (tweets) around certain topics — and potentially increase a topic's popularity.
17 October 2013, 12:59 PM ET
The body mass index, or BMI, is a metric used to estimate the amount of body fat a person has. Though BMI doesn't measure body fat directly, it correlates with other direct measures of body fat.
16 October 2013, 11:53 AM ET
Tramadol, a type of painkiller known as an opioid analgesic (marketed as Ultram, Dromadol, Ralivia or several other names), is chemically similar to morphine, codeine, hydrocodone and other opiates.
14 October 2013, 05:10 PM ET
Methicillin-resistant Staphylococcus aureus, or MRSA, is a strain of staph bacteria that is resistant to the antibiotics normally used to treat such infections. In 1961, British scientists discovered MRSA; it was first seen in the U.S. in 1968,
14 October 2013, 04:29 PM ET
A dry-ice bomb is made with dry ice, the solid form of carbon dioxide. Making a dry-ice bomb is a fairly simple process, but like any explosive device, they can be dangerous.
14 October 2013, 01:44 PM ET
On Oct. 17, the U.S. Treasury Department will run out of money and won't have the ability to borrow the funds needed to pay the America's bills. If the $16.699 trillion debt ceiling seems like a hard figure to wrap your head around, you're not alone.
11 October 2013, 05:32 PM ET
For cat lovers, there are few sounds as precious as a beloved feline's purr. The purr is often interpreted as a sign of contentment, but the real reasons for this vocalization are a bit more complicated.