diff --git a/code/__DEFINES/DNA.dm b/code/__DEFINES/DNA.dm
index 6913473e88..47184674d6 100644
--- a/code/__DEFINES/DNA.dm
+++ b/code/__DEFINES/DNA.dm
@@ -138,8 +138,8 @@
 
 ////organ defines
 #define STANDARD_ORGAN_THRESHOLD 	100
-#define STANDARD_ORGAN_HEALING 		0.001
-#define STANDARD_ORGAN_DECAY		0.00222		//designed to fail organs when left to decay for ~15 minutes
+#define STANDARD_ORGAN_HEALING 		(1/(15 MINUTES / 1 SECONDS))
+#define STANDARD_ORGAN_DECAY		(1/(15 MINUTES / 1 SECONDS))		//designed to fail organs when left to decay for ~15 minutes. 1 SECOND is SSmobs tickrate.
 
 #define G_MALE 1
 #define G_FEMALE 2
diff --git a/code/modules/mob/living/brain/brain_item.dm b/code/modules/mob/living/brain/brain_item.dm
index a14fdb0b53..3b64c35969 100644
--- a/code/modules/mob/living/brain/brain_item.dm
+++ b/code/modules/mob/living/brain/brain_item.dm
@@ -10,7 +10,7 @@
 	organ_flags = ORGAN_VITAL
 	attack_verb = list("attacked", "slapped", "whacked")
 	///The brain's organ variables are significantly more different than the other organs, with half the decay rate for balance reasons, and twice the maxHealth
-	decay_factor = STANDARD_ORGAN_DECAY	/ 4		//30 minutes of decaying to result in a fully damaged brain, since a fast decay rate would be unfun gameplay-wise
+	decay_factor = STANDARD_ORGAN_DECAY	/ 2		//30 minutes of decaying to result in a fully damaged brain, since a fast decay rate would be unfun gameplay-wise
 	healing_factor = STANDARD_ORGAN_HEALING / 2
 
 	maxHealth	= BRAIN_DAMAGE_DEATH
diff --git a/code/modules/surgery/organs/heart.dm b/code/modules/surgery/organs/heart.dm
index 77aa302f8c..5767e84c73 100644
--- a/code/modules/surgery/organs/heart.dm
+++ b/code/modules/surgery/organs/heart.dm
@@ -6,7 +6,7 @@
 	slot = ORGAN_SLOT_HEART
 
 	healing_factor = STANDARD_ORGAN_HEALING
-	decay_factor = 2.5 * STANDARD_ORGAN_DECAY		//designed to fail about 5 minutes after death
+	decay_factor = 2 * STANDARD_ORGAN_DECAY
 
 	low_threshold_passed = "<span class='info'>Prickles of pain appear then die out from within your chest...</span>"
 	high_threshold_passed = "<span class='warning'>Something inside your chest hurts, and the pain isn't subsiding. You notice yourself breathing far faster than before.</span>"