Fixes a bunch of things to not circumvent SetStun/SetWeaken/SetParalyse that has no business doing so.

code/modules/research/xenoarchaeology/artifact/effects/unknown_effect_hurt.dm

@@ -17,7 +17,7 @@
 			C.apply_effect(25 * weakness,IRRADIATE,0)
 			C.nutrition -= min(50 * weakness, C.nutrition)
 			C.Dizzy(6 * weakness)
-			C.weakened += 6 * weakness
+			C.AdjustWeakened(6 * weakness)
 
 /datum/artifact_effect/hurt/DoEffectAura()
 	if(holder)

code/modules/research/xenoarchaeology/tools/suspension_generator.dm

@@ -28,14 +28,14 @@
 		var/turf/T = get_turf(suspension_field)
 		if(field_type == "carbon")
 			for(var/mob/living/carbon/M in T)
-				M.weakened = max(M.weakened, 3)
+				M.Weaken(3)
 				cell.charge -= power_use
 				if(prob(5))
 					M << "\blue [pick("You feel tingly.","You feel like floating.","It is hard to speak.","You can barely move.")]"
 
 		if(field_type == "iron")
 			for(var/mob/living/silicon/M in T)
-				M.weakened = max(M.weakened, 3)
+				M.Weaken(3)
 				cell.charge -= power_use
 				if(prob(5))
 					M << "\blue [pick("You feel tingly.","You feel like floating.","It is hard to speak.","You can barely move.")]"
@@ -47,7 +47,7 @@
 			I.loc = suspension_field
 
 		for(var/mob/living/simple_animal/M in T)
-			M.weakened = max(M.weakened, 3)
+			M.Weaken(3)
 			cell.charge -= power_use
 			if(prob(5))
 				M << "\blue [pick("You feel tingly.","You feel like floating.","It is hard to speak.","You can barely move.")]"
@@ -247,7 +247,7 @@
 		if("carbon")
 			success = 1
 			for(var/mob/living/carbon/C in T)
-				C.weakened += 5
+				C.AdjustWeakened(5)
 				C.visible_message("\blue \icon[C] [C] begins to float in the air!","You feel tingly and light, but it is difficult to move.")
 		if("nitrogen")
 			success = 1
@@ -270,7 +270,7 @@
 		if("iron")
 			success = 1
 			for(var/mob/living/silicon/R in T)
-				R.weakened += 5
+				R.AdjustWeakened(5)
 				R.visible_message("\blue \icon[R] [R] begins to float in the air!","You feel tingly and light, but it is difficult to move.")
 			//
 	//in case we have a bad field type
@@ -279,7 +279,7 @@
 
 	for(var/mob/living/simple_animal/C in T)
 		C.visible_message("\blue \icon[C] [C] begins to float in the air!","You feel tingly and light, but it is difficult to move.")
-		C.weakened += 5
+		C.AdjustWeakened(5)
 
 	suspension_field = new(T)
 	suspension_field.field_type = field_type
@@ -306,7 +306,7 @@
 
 	for(var/mob/M in T)
 		M << "<span class='info'>You no longer feel like floating.</span>"
-		M.weakened = min(M.weakened, 3)
+		M.SetWeakened(min(M.weakened, 3))
 
 	src.visible_message("\blue \icon[src] [src] deactivates with a gentle shudder.")
 	qdel(suspension_field)

code/modules/research/xenobiology/xenobiology.dm

@@ -385,7 +385,8 @@
 				var/mob/living/M = A
 				if(M in immune)
 					continue
-				M.stunned = 10
+				M.stunned += 10
+				M.canmove = 0
 				M.anchored = 1
 				if(istype(M, /mob/living/simple_animal/hostile))
 					var/mob/living/simple_animal/hostile/H = M
@@ -413,7 +414,7 @@
 	return
 
 /obj/effect/timestop/proc/unfreeze_mob(mob/living/M)
-	M.stunned = 0
+	M.AdjustStunned(-10)
 	M.anchored = 0
 	if(istype(M, /mob/living/simple_animal/hostile))
 		var/mob/living/simple_animal/hostile/H = M