diff --git a/src/year1/cognition-and-neuroscience/module1/sections/_introduction.tex b/src/year1/cognition-and-neuroscience/module1/sections/_introduction.tex
index d356de4..67eeadf 100644
--- a/src/year1/cognition-and-neuroscience/module1/sections/_introduction.tex
+++ b/src/year1/cognition-and-neuroscience/module1/sections/_introduction.tex
@@ -59,7 +59,7 @@
         Study of the relationship between the physical brain and the intangible mind (thoughts, ideas).
         In other words, it studies the relationship between structure and function.
 
-        \begin{casestudy}[Severed Corpus Callosum\footnote{\url{https://www.youtube.com/watch?v=lfGwsAdS9Dc}}]
+        \begin{casestudy}[Severed Corpus Callosum \href{https://www.youtube.com/watch?v=lfGwsAdS9Dc}{\texttt{video}}]
             Normally, the right and left hemispheres of the brain can communicate. 
             Moreover, the left visual field is sent to the right hemisphere and 
             the right visual field is sent to the left hemisphere.