According to the author what became of henson

Physiological states

Explanation:

Sickness or disease is a physiological state, which occurs when some of the physiological processes of the body are not working well, either because of internal disruption, like cancer, or external disruption, like viruses or bacteria.

Therefore, when we see everything in our life as negative because we are sick, our percpetion of the world is being affected by a physiological state: the state of being sick.