Final answer:
During periods of extreme fatigue or stress, our perceptions can be distorted and unreliable. We need to be skeptical of our senses in these states as our brain adjusts perceptions based on what is relevant to survival and well-being.
Step-by-step explanation:
Our perceptions can be unreliable during periods of extreme fatigue, stress, or excitement. While we often rely on our sensory experiences to navigate the world, they do not always present a full or complete picture of reality. These perceptions can be influenced by our emotions and state of concentration or alertness, meaning that we adjust what we see unconsciously, tailoring it to what is relevant to our survival and well-being. Given this, during heightened states such as extreme fatigue or stress, our perceptions can be distorted. Therefore, we should occasionally be skeptical of our senses, especially if we are tired or highly emotional. Our brain's ability to maintain homeostasis or to prepare for allostasis can alter our experiences and perceptions, painting a complicated mental model that may differ from actuality.