Nervous and Endocrine Systems: Stimuli

The video tutorial explains the concept of stimuli, which are changes in the environment that can be detected by the body. It distinguishes between voluntary and involuntary responses to stimuli, providing examples such as a baseball player reacting to a ball and squinting when a light is turned on. Voluntary responses involve conscious decisions, while involuntary responses occur without conscious thought.

How do different types of stimuli affect our reactions?

Describe a situation where you might respond to a stimulus without thinking.