cause(sb)great physical or mental suffering
This experience caused him much mental suffering.
You can only guess at what mental suffering they endure.
It's the derogation or lose of mental interest, which behaves of mental suffering mainly.
Text purgatory is the mental suffering you go through when you are waiting for a response to a flirtatious text.
Simply speaking, Euthanasia, so far, can be considered as that the person is terminally ill, under great physical or mental suffering, and chooses to die by acting on his own or passive.
I cried, I laughed, I was silly, not because of laziness, but because it can not be put down, but feel unnecessary, in exchange for physical and mental suffering, helpless cold.
