Artificial sweeteners are just as bad as sugar, and our brain and gut respond to them in surprising ways. These sugar alternatives may have low to no calorie, but studies have shown our body reacts to them negatively. So how are these compounds processed in our body? And how are they harming our health?
Sell By, Best By, or Use By dates on food items don't actually mean what you think. The labels are mainly for quality and flavor purposes, and don't necessarily have anything to do with food safety. Many common foods are edible past the expiration dates.
Alien hand syndrome (AHS), also known as Dr. Strangelove syndrome, is a rare neurological condition in which one of your hands acts involuntarily on its own. Alien hand usually occurs in adults, but it can affect children, too.
Our bodies go through a series of changes during our lifetimes. We grow, experience puberty, and reproduce. This TED-Ed video based on a lesson Emma Bryce explains how our endocrine system constantly regulate every change our bodies undergo, and how it orchestrates everything from sleep to the rhythm of our beating heart, exerting its influence over each and every one of our cells.
Viruses can infect all forms of life: bacteria, archaea, and eukaryotes. And because of their simplicity, which is their key to survival, researchers think they evolved alongside, or even before, the earliest cells. But there's no fossil record of viruses in the conventional sense. How do we know where they came from?
In 1960, Frances Oldham Kelsey was one of the newest recruits of the Food and Drug Administration. During her first month as a reviewer at the FDA, Kelsey refused marketing authorization for a drug called thalidomide in the United States. The drug had been used to treat insomnia and workplace stress, but was later proven to have caused nerve damage, and severe birth defects.
Smallpox is the first and only human disease that was declared eradicated on a global scale. Also, with the breakthroughs made while eradicating smallpox and a number of other creative solutions, we are now really close to making a few more diseases a thing of the past.
12 million people have already sent away samples of their DNA to consumer genetic testing companies to find out information about their own genetic makeup.
Bacteriophage, also known as phage, is a virus specialized in killing bacteria. The virus could one day be used to fight against antibiotic resistant bacteria (or, superbugs), but how?
The brain being in a coma is nothing like being asleep. Pretty fascinating things are happening inside.
As we grow older, parts of our heart can deteriorate or become weaker. As a result, it affects the functionality of heart, which gives us some serious problems.
Skin, the largest organ in your body, accounts for 16 percent of your physical weight. The purpose of skin may seem obvious - to keep your insides in. But besides that, it plays a surprising number of roles in your lives.
Scientists have learned that our immune system is so adaptable and long-lasting that they might be able to engineer our bodies to become immune to germs and antigen invaders we’ve never met, and even make us immune to everything. But how?
The vitreous humor comprises 80 percent of our eyeball. And like most gels, it's mostly water mixed with collagen fibers and a sugar called hyaluronic acid.
Sports like football and soccer cause a significant proportion of injuries, but it's the boxing that's the most dangerous. A punch to the head during a boxing match can range anywhere from 670-1100 pounds of force.
Vaccines work by introducing a weakened form of the germ to your body, so that the immune system can learn to recognize it. Your body then builds its defenses so it’s prepared to fight off a real attack later in life. And no, vaccines do not cause autism. They neither give you peanut allergy.
Old people have that distinctive smell because of the chemical called 2-nonenal. Nonenal begins appearing at the age 40, and the amount increases as you age.