Vanishing twin syndrome refers to a condition that can take place during early or later pregnancy. Vanishing twin syndrome is a type of miscarriage. When more than one embryo appears to be developing ...

Being a twin has made it hard for me and my sister to develop our own identities. People refer to us as "the twins" instead of by our individual names. I will never have a birthday of my own. Being a ...

“It’s vanished,” the sonographer said. He had checked the ultrasound several times and was certain of his assessment. My husband and I craned forward to examine the ghostly shadows on the screen, the ...

A parasitic twin is an identical twin that has stopped developing during gestation, but is physically attached to the fully developing twin. The fully developed twin is also known as the dominant or ...

"I do believe that twins in that situation have a sort of ‘extra sense’ about what is happening with their twin," one expert tells TODAY.com. A video of twin girls selecting the same colored blocks ...

How far would you go to find your "twin flame?" Individuals may embark on an exhaustive journey in the quest for a twin flame, or a profound romantic connection. Two documentaries, “Escaping Twin ...

Good quality sleep is vital to your health, both physical and mental. And when it comes to choosing a mattress, size can play a huge role in how comfortable you are. If you're looking for slimmer ...

Some mattress sizes are easy to differentiate, like a full versus a queen, but others are downright confusing. For example, what's the difference between a single and a twin mattress? Technically, ...