Believed to have originated in Ethiopia in the 9th century, coffee quickly took over the world and became one of the most popular drinks. Let's find out interesting information about coffee through the following quiz.

Being startled while sleeping is not a disease or a disorder of the nervous system, but a sudden muscle twitch that appears in the first few hours of sleep. Being startled while sleeping is often accompanied by a feeling of loss or fear while sleeping. This condition, if prolonged, can affect the quality of sleep and cause fatigue the next morning. So why do you often wake up startled while sleeping?