A reflex is a response we cannot control. Typically, doctors will check the reflex at the elbow, knee and heel to see if it elicits a response. Without diving into the neurology of how a reflex works, it basically skips the “thinking” part of the process.
Let's look at an example:
SOOO what is a “Babinski’s reflex”?
Reflexes are designed as a protective mechanism. They can become dysfunctional when there is damage to the nervous system. It is important to note that a Babinski’s reflex should be assessed along with clinical findings to determine if further investigation is needed.
Acharya, Aninda B., Radia T. Jamil, and Jeffrey J. Dewey. "Babinski reflex." StatPearls [Internet]. StatPearls Publishing, 2022.
Lance, J. "The Babinski sign." Journal of Neurology, Neurosurgery, and Psychiatry 73.4 (2002): 360.
Modrell, Alexa K., and Prasanna Tadi. "Primitive reflexes." StatPearls [Internet]. StatPearls Publishing, 2021.