In this video I describe homeostasis, which refers to maintenance of an optimal state, and allostasis, which clarifies that an optimal state is actually a range of possible states depending on context. Next I discuss Hans Selye’s theory of General … Read More
What is Stress?
In this video I discuss how we define stress. I begin with Walter Cannon’s “fight or flight” response and the activation of the sympathetic nervous system. Next I discuss the distinction between stressors and the stress response. I consider Holmes … Read More
What is Stress?
You’re undoubtedly familiar with the concept of stress, but like many psychological variables we’ve seen, you may find it difficult to come up with a precise definition. What exactly is stress and how can we go about measuring it Walter … Read More