References
20 May 2014, 12:42 AM ET
Druids were revered in ancient Britain. Much about them is a mystery, but we know this: They did not build Stonehenge.
16 May 2014, 10:35 PM ET
A woman can deliver her baby either by vaginal birth or a C-section. Both delivery methods have advantages and disadvantages.
15 May 2014, 09:18 PM ET
Our modern Western calendar is almost entirely a Roman invention, but it has changed significantly throughout history.
13 May 2014, 08:34 PM ET
There is also no definitive way to predict a baby's sex. Even common tests, such as ultrasound and amniocentesis, are not completely accurate.
12 May 2014, 09:36 PM ET
Panic disorder is marked by sudden and repeated bouts of extreme fear that can last for several minutes or even longer. These episodes are referred to as panic attacks.
12 May 2014, 08:27 PM ET
A midwife is a trained professional who aids and supports women in their pregnancies. Many women with low-risk pregnancies prefer using a midwife.
09 May 2014, 07:54 PM ET
The use of "anno domini" and "before Christ" to mark time began in the early days of Christianity, when clerics needed to know when Easter would fall.
09 May 2014, 07:27 PM ET
The first atomic bombs were detonated during World War II.
09 May 2014, 02:32 AM ET
Spiny on the outside, sweet on the inside, pineapples are one fantastic fruit.
07 May 2014, 07:23 PM ET
The Romans named the days of the week after their gods. The Germanic people adapted the Roman system and gave us the English names of the days.
07 May 2014, 01:38 AM ET
Broccoli, the green vegetable both reviled and revered by U.S. presidents, is a nutrient powerhouse.
07 May 2014, 01:19 AM ET
Prostate cancer is one of the most common forms of cancer in men: Almost 240,000 men in the United States are diagnosed with prostate cancer each year.
07 May 2014, 01:14 AM ET
Claims that some twins share a telepathic bond are anecdotal at best.
07 May 2014, 01:08 AM ET
Here's how to engineer a mosquito-free environment, and what to do if these annoying insects do bite.
03 May 2014, 01:30 AM ET
Seasonal allergies can be treated with OTC medicines, prescription drugs and natural remedies. Learn which medications address which symptoms.
02 May 2014, 08:37 AM ET
As the search for Malaysia Airlines Flight 370 continues, here are some facts about the passengers, crew, aircraft and airline.
01 May 2014, 11:27 PM ET
To the ancient Greeks, a barbarian was someone who didn't speak Greek. Over time, the word has taken on new meanings.
01 May 2014, 10:44 PM ET
The Egyptians started dividing the day into 24 units, a practice that continues to influence how we tell time.
01 May 2014, 10:06 PM ET
Asparagus contains a stimulating blend of nutrients, making this member of the lily family a fantastic food for your health.
01 May 2014, 09:23 PM ET
The San Andreas Fault triggered some of the biggest earthquakes in United States history.
01 May 2014, 09:13 PM ET
Onions have layers and layers of health benefits. Some of the nutrients in onions may help promote heart health, reduce inflammation, and reduce the risk of cancer.
01 May 2014, 01:16 AM ET
The desire and need to cool the air goes back millennia. Air conditioning began in ancient Egypt and was perfected in the 20th century.
30 April 2014, 04:04 PM ET
A convergent series is a mathematical series in which the sequence of partial sums converges to a finite number. A divergent series is just the opposite — the sums do not meet a finite limit.
30 April 2014, 02:29 AM ET
The Hope Diamond is one of the most spectacular gems in the world, but some people believe ownership comes at a cost.
29 April 2014, 12:31 AM ET
Avocados are a versatile fruit that are packed with nutrients and are a great way to add healthy fat to your diet.
28 April 2014, 06:28 PM ET
Exercise and fitness are an important part of a healthy pregnancy. Exercise can help alleviate many of the negative symptoms associated with pregnancy.
25 April 2014, 05:41 PM ET
The Holocaust refers to the Nazi-sponsored murder of the Jewish population of Europe — and other groups — during World War II. The International Holocaust Remembrance Day is April 28.
24 April 2014, 05:35 PM ET
Whey protein is a supplement often used for building muscle. But is it safe to use, and does it work? Live Science looked at the science behind taking whey protein.
23 April 2014, 10:54 PM ET
There's a reason they say you're "eating for two" when you're pregnant. Find out what to eat when pregnant and what foods to avoid.
23 April 2014, 02:05 AM ET
High in vitamin C and potassium, oranges may boost your immune system, improve your skin and reduce the risks of cancer.
22 April 2014, 02:30 AM ET
Bananas are packed with nutrients and are good for your heart, your eyes, your diet and your mood.
19 April 2014, 01:18 AM ET
Dividing the day into hours, minutes and seconds is a recent practice with thousands of years of science and tradition behind it.