References

"Drunk hiccups" seem to be a real phenomenon, rather than just a gag in classic cartoons, but we know surprisingly little about what actually causes them.

Cheeses such as Stilton and Camembert contain species of mold that are safe for humans to eat. Why?

Reference A look at the phases of the moon, from new moon to full moon, including's tonight's lunar phase.

Reference The history of computers began with primitive designs in the early 19th century and went on to change the world during the 20th century.

Why is frankincense associated with Christmas and medical treatments?

The answer to this question depends on two factors: the microbes that cause the infection and the way they spread from person to person.

A number of medical conditions can cause an allergic reaction to ultraviolet light from the sun.

Buying Guide We've ranked the best photo editing laptops, from MacBooks to gaming notebooks

Inflammation is the body's response to injury or infection. It works to help heal wounds, but it can also play a role in chronic disease.

There are a number of possible reasons for bleeding between periods, including hormonal changes, infections and certain medical conditions.

Redheads are said to experience pain differently than other people and require higher doses of pain medications, depending on the drug used. Why?

New scientific techniques are helping us reconstruct people from the past in uncanny detail.

A buildup of dental plaque breaks down tooth enamel, leading to tooth decay, gum disease and other oral health conditions.

Having a stuffy nose often comes with pain and tenderness around your cheeks, eyes or forehead. But what do blocked sinuses look like inside your head?

Coming down with a cold or the flu can muffle your hearing, but why?

Heart murmurs are extra, unusual sounds heard during a heartbeat — but why do they happen?

After you've eaten beets, your poop and urine can take on a shocking red or pink color — but why?

The speed at which food moves through the digestive tract depends on many factors.

The prehistoric monument Stonehenge was built up to 5,000 years ago on Salisbury Plain in England, but its ultimate purpose remains a tantalizing mystery.

Several muscles could be called the "largest" in the body, depending on whether you're talking mass or surface area, but the body's smallest muscle has no competition.