full transcript

From the Ted Talk by Douglas J. Casa: What happens when you get heat stroke?

Unscramble the Blue Letters

In 1985, 16-year-old doulgas Casa, ran the chaspnhomiip 10,000 meter track race at the Empire State gmeas. Suddenly, with just 200 meters to go, he collapsed, got back up and then collapsed again on the final satwiaahrgty, with his body temperature at dangerous lelves. He had suffered an exertional heat srokte. fnautotelry, with immediate and proper treatment, he survived the potentially fatal edsiope and has since helped save 167 people in similar circumstances. From ancient soldiers on the balteietlfd to modern day wrrarois on the gridiron, exertional heat stroke, or sunstroke, has long been a serious concern. And unlike classical heat stroke, which affects vulnerable people such as infants and the elderly during heat waves, exertional heat stroke is caused by itnnsee exercise in the heat, and is one of the top three killers of athletes and soldiers in training. When you exercise, nearly 80% of the energy you use is tmanrsfored into heat. In normal cmnsauccriets, this is what's known as compensable heat stress. And your body can dissipate the heat as quickly as it's ganeteerd through cooling methods like the evaporation of sweat. But with unsnclpmboeae heat srsets, your body is unable to lose enough heat due to overexertion or high temperatures in humidity, which raises your core ttpuemarree beyond normal levels. This causes the proteins and cell membranes to denature, creating cells that no longer function properly and begin to leak their contents. If these leaky cells proliferate through the body, the results can be devastating. Including liver damage, blood clot formation in the kidneys, damage to the gastrointestinal tract and even the failure of vital oragns. So how do you diagnose an eoeanxrtil heat stroke? The main ctroirein is a core body temperature greater than 40 deegres Celsius observed along with physical symptoms such as increased heart rate, low bolod pressure and rapid breathing or signs of central nervous system disfunction such as confused bhivoear, aggression or loss of ccosouesnniss. The most feasible and accurate way to assess core body temperature is with a raectl thermometer as other cmoomn temperature-taking mehtods are not aracctue in these circumstances. As far as treatment goes, the most ipotnamrt thing to remember is cool first, tpornarst second. Because the human body can withstand a core temperature above 40 degrees cuelsis for about 30 minutes before cell damage sets in, it's essential to itniitae rapid cooling on site in oerdr to lower it as quickly as possible. After any aethiltc or protective gear has been removed from the victim, place them in an ice weatr tub while stirring the water and monitoring vitals continuously. If this is not possible, dniuosg in ice water and applying wet toelws over the entire body can help. But before you start anything, emergency services should be called. As you wait, it's important to keep the victim calm while cooling as much surface area as possible until emergency personnel arrive. If medical staff are available on site, cooling should continue until a core temperature of 38.9 degrees Celsius is reached. The sun is known for giving life, but it can also take life away if we're not careful, even affecting the strongest among us. As Dr. JJ Levick wrote of exertional heat stroke in 1859, "It skteris down its victim with his full armor on. Youth, health and strength oppose no obstacle to its pweor." But although this condition is one of the top three leading causes of death in sports, it has been 100% survivable with proper care.

Open Cloze

In 1985, 16-year-old _______ Casa, ran the ____________ 10,000 meter track race at the Empire State _____. Suddenly, with just 200 meters to go, he collapsed, got back up and then collapsed again on the final ____________, with his body temperature at dangerous ______. He had suffered an exertional heat ______. ___________, with immediate and proper treatment, he survived the potentially fatal _______ and has since helped save 167 people in similar circumstances. From ancient soldiers on the ___________ to modern day ________ on the gridiron, exertional heat stroke, or sunstroke, has long been a serious concern. And unlike classical heat stroke, which affects vulnerable people such as infants and the elderly during heat waves, exertional heat stroke is caused by _______ exercise in the heat, and is one of the top three killers of athletes and soldiers in training. When you exercise, nearly 80% of the energy you use is ___________ into heat. In normal _____________, this is what's known as compensable heat stress. And your body can dissipate the heat as quickly as it's _________ through cooling methods like the evaporation of sweat. But with _____________ heat ______, your body is unable to lose enough heat due to overexertion or high temperatures in humidity, which raises your core ___________ beyond normal levels. This causes the proteins and cell membranes to denature, creating cells that no longer function properly and begin to leak their contents. If these leaky cells proliferate through the body, the results can be devastating. Including liver damage, blood clot formation in the kidneys, damage to the gastrointestinal tract and even the failure of vital ______. So how do you diagnose an __________ heat stroke? The main _________ is a core body temperature greater than 40 _______ Celsius observed along with physical symptoms such as increased heart rate, low _____ pressure and rapid breathing or signs of central nervous system disfunction such as confused ________, aggression or loss of _____________. The most feasible and accurate way to assess core body temperature is with a ______ thermometer as other ______ temperature-taking _______ are not ________ in these circumstances. As far as treatment goes, the most _________ thing to remember is cool first, _________ second. Because the human body can withstand a core temperature above 40 degrees _______ for about 30 minutes before cell damage sets in, it's essential to ________ rapid cooling on site in _____ to lower it as quickly as possible. After any ________ or protective gear has been removed from the victim, place them in an ice _____ tub while stirring the water and monitoring vitals continuously. If this is not possible, _______ in ice water and applying wet ______ over the entire body can help. But before you start anything, emergency services should be called. As you wait, it's important to keep the victim calm while cooling as much surface area as possible until emergency personnel arrive. If medical staff are available on site, cooling should continue until a core temperature of 38.9 degrees Celsius is reached. The sun is known for giving life, but it can also take life away if we're not careful, even affecting the strongest among us. As Dr. JJ Levick wrote of exertional heat stroke in 1859, "It _______ down its victim with his full armor on. Youth, health and strength oppose no obstacle to its _____." But although this condition is one of the top three leading causes of death in sports, it has been 100% survivable with proper care.

Solution

  1. behavior
  2. transformed
  3. criterion
  4. douglas
  5. exertional
  6. organs
  7. temperature
  8. episode
  9. intense
  10. towels
  11. straightaway
  12. rectal
  13. blood
  14. circumstances
  15. methods
  16. games
  17. initiate
  18. athletic
  19. uncompensable
  20. accurate
  21. battlefield
  22. order
  23. common
  24. fortunately
  25. championship
  26. strikes
  27. water
  28. consciousness
  29. stress
  30. warriors
  31. celsius
  32. important
  33. generated
  34. degrees
  35. stroke
  36. levels
  37. transport
  38. dousing
  39. power

Original Text

In 1985, 16-year-old Douglas Casa, ran the championship 10,000 meter track race at the Empire State Games. Suddenly, with just 200 meters to go, he collapsed, got back up and then collapsed again on the final straightaway, with his body temperature at dangerous levels. He had suffered an exertional heat stroke. Fortunately, with immediate and proper treatment, he survived the potentially fatal episode and has since helped save 167 people in similar circumstances. From ancient soldiers on the battlefield to modern day warriors on the gridiron, exertional heat stroke, or sunstroke, has long been a serious concern. And unlike classical heat stroke, which affects vulnerable people such as infants and the elderly during heat waves, exertional heat stroke is caused by intense exercise in the heat, and is one of the top three killers of athletes and soldiers in training. When you exercise, nearly 80% of the energy you use is transformed into heat. In normal circumstances, this is what's known as compensable heat stress. And your body can dissipate the heat as quickly as it's generated through cooling methods like the evaporation of sweat. But with uncompensable heat stress, your body is unable to lose enough heat due to overexertion or high temperatures in humidity, which raises your core temperature beyond normal levels. This causes the proteins and cell membranes to denature, creating cells that no longer function properly and begin to leak their contents. If these leaky cells proliferate through the body, the results can be devastating. Including liver damage, blood clot formation in the kidneys, damage to the gastrointestinal tract and even the failure of vital organs. So how do you diagnose an exertional heat stroke? The main criterion is a core body temperature greater than 40 degrees Celsius observed along with physical symptoms such as increased heart rate, low blood pressure and rapid breathing or signs of central nervous system disfunction such as confused behavior, aggression or loss of consciousness. The most feasible and accurate way to assess core body temperature is with a rectal thermometer as other common temperature-taking methods are not accurate in these circumstances. As far as treatment goes, the most important thing to remember is cool first, transport second. Because the human body can withstand a core temperature above 40 degrees Celsius for about 30 minutes before cell damage sets in, it's essential to initiate rapid cooling on site in order to lower it as quickly as possible. After any athletic or protective gear has been removed from the victim, place them in an ice water tub while stirring the water and monitoring vitals continuously. If this is not possible, dousing in ice water and applying wet towels over the entire body can help. But before you start anything, emergency services should be called. As you wait, it's important to keep the victim calm while cooling as much surface area as possible until emergency personnel arrive. If medical staff are available on site, cooling should continue until a core temperature of 38.9 degrees Celsius is reached. The sun is known for giving life, but it can also take life away if we're not careful, even affecting the strongest among us. As Dr. JJ Levick wrote of exertional heat stroke in 1859, "It strikes down its victim with his full armor on. Youth, health and strength oppose no obstacle to its power." But although this condition is one of the top three leading causes of death in sports, it has been 100% survivable with proper care.

Frequently Occurring Word Combinations

ngrams of length 2

collocation frequency
exertional heat 5
body temperature 3
heat stroke 3
core temperature 3
degrees celsius 3
core body 2
ice water 2

ngrams of length 3

collocation frequency
exertional heat stroke 3
core body temperature 2

Important Words

  1. accurate
  2. affecting
  3. affects
  4. aggression
  5. ancient
  6. applying
  7. area
  8. armor
  9. arrive
  10. assess
  11. athletes
  12. athletic
  13. battlefield
  14. behavior
  15. blood
  16. body
  17. breathing
  18. called
  19. calm
  20. care
  21. careful
  22. casa
  23. caused
  24. cell
  25. cells
  26. celsius
  27. central
  28. championship
  29. circumstances
  30. classical
  31. clot
  32. collapsed
  33. common
  34. compensable
  35. concern
  36. condition
  37. confused
  38. consciousness
  39. contents
  40. continue
  41. continuously
  42. cool
  43. cooling
  44. core
  45. creating
  46. criterion
  47. damage
  48. dangerous
  49. day
  50. death
  51. degrees
  52. denature
  53. devastating
  54. diagnose
  55. disfunction
  56. dissipate
  57. douglas
  58. dousing
  59. dr
  60. due
  61. elderly
  62. emergency
  63. empire
  64. energy
  65. entire
  66. episode
  67. essential
  68. evaporation
  69. exercise
  70. exertional
  71. failure
  72. fatal
  73. feasible
  74. final
  75. formation
  76. fortunately
  77. full
  78. function
  79. games
  80. gastrointestinal
  81. gear
  82. generated
  83. giving
  84. greater
  85. gridiron
  86. health
  87. heart
  88. heat
  89. helped
  90. high
  91. human
  92. humidity
  93. ice
  94. important
  95. including
  96. increased
  97. infants
  98. initiate
  99. intense
  100. jj
  101. kidneys
  102. killers
  103. leading
  104. leak
  105. leaky
  106. levels
  107. levick
  108. life
  109. liver
  110. long
  111. longer
  112. lose
  113. loss
  114. main
  115. medical
  116. membranes
  117. meter
  118. meters
  119. methods
  120. minutes
  121. modern
  122. monitoring
  123. nervous
  124. normal
  125. observed
  126. obstacle
  127. oppose
  128. order
  129. organs
  130. overexertion
  131. people
  132. personnel
  133. physical
  134. place
  135. potentially
  136. power
  137. pressure
  138. proliferate
  139. proper
  140. properly
  141. protective
  142. proteins
  143. quickly
  144. race
  145. raises
  146. ran
  147. rapid
  148. rate
  149. reached
  150. rectal
  151. remember
  152. removed
  153. results
  154. save
  155. services
  156. sets
  157. signs
  158. similar
  159. site
  160. soldiers
  161. sports
  162. staff
  163. start
  164. state
  165. stirring
  166. straightaway
  167. strength
  168. stress
  169. strikes
  170. stroke
  171. strongest
  172. suddenly
  173. suffered
  174. sun
  175. sunstroke
  176. surface
  177. survivable
  178. survived
  179. sweat
  180. symptoms
  181. system
  182. temperature
  183. temperatures
  184. thermometer
  185. top
  186. towels
  187. track
  188. tract
  189. training
  190. transformed
  191. transport
  192. treatment
  193. tub
  194. unable
  195. uncompensable
  196. victim
  197. vital
  198. vitals
  199. vulnerable
  200. wait
  201. warriors
  202. water
  203. waves
  204. wet
  205. withstand
  206. wrote
  207. youth