Robin Zabiegalski (they/them) is a queer, non-binary writer with over eight years of experience writing for digital media. Robin previously covered Star Trek for Heavy.com and has interviewed several ...

In preparation for the birth of your baby, your cervix effaces (thins and stretches) and dilates (opens) so your baby can fit through the birth canal. This cervical ripening can begin days or even ...

Time dilation is possibly the weirdest part of Einstein’s Theory of Special Relativity. According to time dilation, the faster you travel, the slower your time moves. But why does this happen? It’s ...

Eye dilation refers to a widening of the pupils. When doctors dilate the pupils during an eye exam, it typically lasts between 4 and 24 hours. Doctors sometimes use eye dilation drops to dilate a ...

Many factors can influence pupil size. Typically, the pupils open up in low light situations to let in more light. However, some research suggests that attraction and mood might also cause pupil ...

Pupil dilation provides a physiological readout of information gain during the brain's internal process of belief updating in the context of associative learning.