Related by context. Frequent words. (Click for all words.) 67 heat exhaustion 66 dehydration 59 hypothermia 54 carbon monoxide poisoning 54 frostbite 53 kidney failure 48 sunburn 48 sweltering heat 48 cardiac arrest 48 sweltering 47 pneumonia 47 fainting 45 exhaustion 45 heat 45 breathing difficulties 44 suffocation 44 dehydrated 43 overdose 43 vomiting 43 allergic reaction 43 liver disease 42 exertion 42 meningitis 42 cramps 42 illness 42 irregular heartbeat 42 drug overdose 41 sweating 41 fever 41 tiredness 41 malnutrition 41 humidity 41 poisoning 40 encephalitis 40 fainted 40 injuries 40 freezing temperatures 40 lung disease 40 overheating 40 fatigue 40 dizziness 40 internal bleeding 40 allergies 40 humid 40 viral infection 40 illnesses 40 bacterial infection 40 respiratory 39 dengue fever 39 heart disease 39 temperatures 39 difficulty breathing 38 heatwave 38 hydrated 38 bronchitis 38 organ failure 38 asthma 38 sun 38 kidney disease 38 hydration 38 fevers 38 smoke inhalation 38 sickness 37 asphyxiation 37 kidney stones 37 freak accident 37 concussions 37 allergic reactions 37 severe burns 37 sepsis 37 ephedra 36 temperature 36 accidental overdose 36 concussion 36 ingesting 36 overheated 36 sore throat 36 stroke 36 chest pains 36 symptoms 36 ailment 36 leukemia 36 carbon monoxide 36 injury 36 aches 36 brain hemorrhage 36 overdoses 36 drowning 36 diarrhea 35 cold 35 negligence 35 shortness 35 air conditioning 35 respiratory diseases 35 reckless homicide 35 cramping 35 degrees Fahrenheit 35 emphysema 35 ailments 35 hospitalized 35 sleep apnea