Imagine being confined to a 10-by-10-foot room in complete isolation.
No timekeeping devices, no phones, no books, nothing to write on, no windows.
Psychologists say that fewer than three days in a room like this can lead to brain damage.
I will be staying in this room for three days.
Clearly, he is on the border of misery.
Even in a city surrounded by people, it's possible to feel lonely or bored.
Your brain is like a hungry sponge.
It's constantly absorbing information.
It thrives when stimulated.
Between smartphones and books, and movies, and friends and family, thousands of sensations are constantly going into our heads.
