diff --git a/disease/arthritis.arc b/disease/arthritis.arc
index 6baf25e0a..590509ece 100644
--- a/disease/arthritis.arc
+++ b/disease/arthritis.arc
@@ -10,7 +10,7 @@ Dex -2
 maxhp 1
 maxgrace -1
 food -1
-speed 0.005
+speed 0.001
 last_sp 0
 maxsp 0
 ac 1
diff --git a/disease/diarrhea.arc b/disease/diarrhea.arc
index a95ad66ff..b0ffc99dc 100644
--- a/disease/diarrhea.arc
+++ b/disease/diarrhea.arc
@@ -10,7 +10,7 @@ maxhp 1
 dam 0
 maxgrace -1
 food -1
-speed 0.005
+speed 0.001
 last_sp 0
 maxsp 0
 last_eat 0
diff --git a/disease/flaming_fart.arc b/disease/flaming_fart.arc
index 8b0d08e10..4b1a13bcd 100644
--- a/disease/flaming_fart.arc
+++ b/disease/flaming_fart.arc
@@ -10,7 +10,7 @@ maxhp 1
 dam 0
 maxgrace -1
 food -1
-speed 0.005
+speed 0.001
 last_sp 0
 maxsp 0
 last_eat 0
diff --git a/disease/incontinence.arc b/disease/incontinence.arc
index 5843e2707..3a91c832a 100644
--- a/disease/incontinence.arc
+++ b/disease/incontinence.arc
@@ -10,7 +10,7 @@ maxhp 1
 dam 0
 maxgrace -1
 food -1
-speed 0.005
+speed 0.001
 last_sp 0
 maxsp 0
 last_eat 0
diff --git a/disease/scurvy.arc b/disease/scurvy.arc
index 8c6d24359..b998a433f 100644
--- a/disease/scurvy.arc
+++ b/disease/scurvy.arc
@@ -11,7 +11,7 @@ maxhp 1
 dam 0
 maxgrace -1
 food -1
-speed 0.005
+speed 0.001
 last_sp 0
 maxsp 0
 last_eat 0
diff --git a/disease/tapeworms.arc b/disease/tapeworms.arc
index da08fb4c6..0239ce408 100644
--- a/disease/tapeworms.arc
+++ b/disease/tapeworms.arc
@@ -8,7 +8,7 @@ magic 1
 maxhp 1
 maxgrace -1
 food -1
-speed 0.005
+speed 0.001
 last_sp 0
 maxsp 0
 ac 0
diff --git a/disease/warts.arc b/disease/warts.arc
index a281eae8b..88185db59 100644
--- a/disease/warts.arc
+++ b/disease/warts.arc
@@ -9,7 +9,7 @@ Cha -1
 maxhp 1
 maxgrace -1
 food -1
-speed 0.005
+speed 0.001
 last_sp 0
 maxsp 0
 ac 0