diff --git a/code/datums/brain_damage/severe.dm b/code/datums/brain_damage/severe.dm
new file mode 100644
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+++ b/code/datums/brain_damage/severe.dm
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+//Severe traumas, when your brain gets abused way too much.
+//These range from very annoying to completely debilitating.
+//They cannot be cured with chemicals, and require brain surgery to solve.
+
+/datum/brain_trauma/severe
+
+/datum/brain_trauma/severe/mute
+ name = "Mutism"
+ desc = "Patient is completely unable to speak."
+ scan_desc = "extensive damage to the brain's language center"
+ gain_text = "You forget how to speak!"
+ lose_text = "You suddenly remember how to speak."
+
+/datum/brain_trauma/severe/mute/on_gain()
+ owner.disabilities |= MUTE
+ ..()
+
+//no fiddling with genetics to get out of this one
+/datum/brain_trauma/severe/mute/on_life()
+ if(!(owner.disabilities & MUTE))
+ on_gain()
+ ..()
+
+/datum/brain_trauma/severe/mute/on_lose()
+ owner.disabilities &= ~MUTE
+ ..()
+
+/datum/brain_trauma/severe/blindness
+ name = "Cerebral Blindness"
+ desc = "Patient's brain is no longer connected to its eyes."
+ scan_desc = "extensive damage to the brain's occipital lobe"
+ gain_text = "You can't see!"
+ lose_text = "Your vision returns."
+
+/datum/brain_trauma/severe/blindness/on_gain()
+ owner.become_blind()
+ ..()
+
+//no fiddling with genetics to get out of this one
+/datum/brain_trauma/severe/blindness/on_life()
+ if(!(owner.disabilities & BLIND))
+ on_gain()
+ ..()
+
+/datum/brain_trauma/severe/blindness/on_lose()
+ owner.cure_blind()
+ ..()
+
+/datum/brain_trauma/severe/paralysis
+ name = "Paralysis"
+ desc = "Patient's brain can no longer control its motor functions."
+ scan_desc = "cerebral paralysis"
+ gain_text = "You can't feel your body anymore!"
+ lose_text = "You can feel your limbs again!"
+
+/datum/brain_trauma/severe/paralysis/on_life()
+ owner.Knockdown(200, ignore_canknockdown = TRUE)
+ ..()
+
+/datum/brain_trauma/severe/paralysis/on_lose()
+ owner.SetKnockdown(0)
+ ..()
+
+/datum/brain_trauma/severe/narcolepsy
+ name = "Narcolepsy"
+ desc = "Patient may involuntarily fall asleep during normal activities."
+ scan_desc = "traumatic narcolepsy"
+ gain_text = "You have a constant feeling of drowsiness..."
+ lose_text = "You feel awake and aware again."
+
+/datum/brain_trauma/severe/narcolepsy/on_life()
+ ..()
+ if(owner.IsSleeping())
+ return
+ var/sleep_chance = 1
+ if(owner.m_intent == MOVE_INTENT_RUN)
+ sleep_chance += 2
+ if(owner.drowsyness)
+ sleep_chance += 3
+ if(prob(sleep_chance))
+ to_chat(owner, "You fall asleep.")
+ owner.Sleeping(60)
+ else if(!owner.drowsyness && prob(sleep_chance * 2))
+ to_chat(owner, "You feel tired...")
+ owner.drowsyness += 10
+
+/datum/brain_trauma/severe/monophobia
+ name = "Monophobia"
+ desc = "Patient feels sick and distressed when not around other people, leading to potentially lethal levels of stress."
+ scan_desc = "severe monophobia"
+ gain_text = ""
+ lose_text = "You feel like you could be safe on your own."
+ var/stress = 0
+
+/datum/brain_trauma/severe/monophobia/on_gain()
+ ..()
+ if(check_alone())
+ to_chat(owner, "You feel really lonely...")
+ else
+ to_chat(owner, "You feel safe, as long as you have people around you.")
+
+/datum/brain_trauma/severe/monophobia/on_life()
+ ..()
+ if(check_alone())
+ stress = min(stress + 0.5, 100)
+ if(stress > 10 && (prob(5)))
+ stress_reaction()
+ else
+ stress -= 4
+
+/datum/brain_trauma/severe/monophobia/proc/check_alone()
+ if(owner.disabilities & BLIND)
+ return TRUE
+ for(var/mob/M in oview(owner, 7))
+ if(!isliving(M)) //ghosts ain't people
+ continue
+ if((istype(M, /mob/living/simple_animal/pet)) || M.ckey)
+ return FALSE
+ return TRUE
+
+/datum/brain_trauma/severe/monophobia/proc/stress_reaction()
+ if(owner.stat != CONSCIOUS)
+ return
+
+ var/high_stress = (stress > 60) //things get psychosomatic from here on
+ switch(rand(1,6))
+ if(1)
+ if(!high_stress)
+ to_chat(owner, "You feel sick...")
+ else
+ to_chat(owner, "You feel really sick at the thought of being alone!")
+ addtimer(CALLBACK(owner, /mob/living/carbon.proc/vomit, high_stress), 50) //blood vomit if high stress
+ if(2)
+ if(!high_stress)
+ to_chat(owner, "You can't stop shaking...")
+ owner.dizziness += 20
+ owner.confused += 20
+ owner.Jitter(20)
+ else
+ to_chat(owner, "You feel weak and scared! If only you weren't alone...")
+ owner.dizziness += 20
+ owner.confused += 20
+ owner.Jitter(20)
+ owner.adjustStaminaLoss(50)
+
+ if(3, 4)
+ if(!high_stress)
+ to_chat(owner, "You feel really lonely...")
+ else
+ to_chat(owner, "You're going mad with loneliness!")
+ owner.hallucination += 20
+
+ if(5)
+ if(!high_stress)
+ to_chat(owner, "Your heart skips a beat.")
+ owner.adjustOxyLoss(8)
+ else
+ if(prob(15) && ishuman(owner))
+ var/mob/living/carbon/human/H = owner
+ H.set_heartattack(TRUE)
+ to_chat(H, "You feel a stabbing pain in your heart!")
+ else
+ to_chat(owner, "You feel your heart lurching in your chest...")
+ owner.adjustOxyLoss(8)
+
+/datum/brain_trauma/severe/discoordination
+ name = "Discoordination"
+ desc = "Patient is unable to use complex tools or machinery."
+ scan_desc = "extreme discoordination"
+ gain_text = "You can barely control your hands!"
+ lose_text = "You feel in control of your hands again."
+
+/datum/brain_trauma/severe/discoordination/on_gain()
+ owner.disabilities |= MONKEYLIKE
+ ..()
+
+/datum/brain_trauma/severe/discoordination/on_lose()
+ owner.disabilities &= ~MONKEYLIKE
+ ..()