Have you ever heard the name “Doctor Yellow”? It’s a special train equipped with devices to measure track distortions and overhead wire conditions on the Shinkansen (bullet train), and it’s a yellow Shinkansen, hence the nickname. General passengers cannot ride it, and its running schedule is unofficial, leading to the

We often see maps in our daily lives, whether on paper or online using Google Maps. Looking at a world map, the Japanese archipelago appears to be a fairly small island nation, but in reality, it ranks 61st out of 197 countries.It’s not particularly small, and the image conveyed by

Physical fatigue is probably easy to imagine.On the other hand, mental fatigue is surprisingly often overlooked. “Brain fatigue” has become more common in recent years. “Brain fatigue” refers to a temporary decline in brain function caused by overuse.When the brain is overloaded with thinking, imagining, or experiencing emotional fluctuations such

While you may not often feel swelling or stiffness in your thighs, everyday fatigue can accumulate due to walking habits and other factors. Let’s start with stretching the front of your thighs. Stand in front of a wall and place your hands on the wall for light support. Bend the

Many people have experienced losing or misplacing something while out and about, such as on a train or other public transport. These are collectively referred to as “lost property.” For example, lost items on trains or at stations are usually kept at the station for a few days before being

As people reach a certain age, they may experience increased forgetfulness, leading to concerns like, “Could this be dementia?” While a sudden and severe increase in forgetfulness can indeed be a sign of dementia, there’s another possible cause besides illness: Sleep deprivation. Sleep deprivation significantly impacts memory. Memory is controlled