diff --git a/.index b/.index
index b32cef4..4cedcb5 100644
--- a/.index
+++ b/.index
@@ -269,3 +269,4 @@ tabata.md
 20260723095930.todo.md
 20260728080642.md
 20260729064959.todo.md
+125
diff --git a/125/.index b/125/.index
new file mode 100644
index 0000000..d61f00d
--- /dev/null
+++ b/125/.index
@@ -0,0 +1 @@
+90
diff --git a/125/90 b/125/90
new file mode 100644
index 0000000..35dbcca
--- /dev/null
+++ b/125/90
@@ -0,0 +1 @@
+blood pressure