Surviving the Extremes: A Doctor's Journey to the Limits of Human Endurance (52 page)

2,3,DPG,
195

ulnar artery,
32

ultramarathon,
124–25

ultraviolet radiation,
150–51
,
232

unconsciousness,
194

underwater,
156–82

exploration of,
167
,
177
,
181–82

underwear, water-cooled,
255

urea,
145

urethral tube, candiru in,
41

urinary-tract infection,
79

urination,
41
,
194
,
259

urine,
104
,
108
,
131
,
135

concentrated,
132
,
139

drinking own,
136
,
145

“vaccination,” against desert,
138–39

Valencia, Pablo,
151–55
,
280
,
289

Valsalva maneuver,
162

Van Allen Belts,
261

Van Pham, Richard,
119

vasodilator,
211

veins, cut,
32

venom, snake,
44–48
,
77–78

vestibular system,
247–50
,
260

Viesturs, Ed,
228

viridis,
72

Virola vine,
72

visions,
69–70
,
71–72
,
289

visual cortex,
110

vomiting,
87
,
90
,
93
,
137

wadi,
137
,
145

walking,
131
,
141–42
,
199

Walter Reed Hospital,
16

warfare, native,
75–76

wasps,
57
,
78

water

boiling point of,
242

pressure of, in dives,
161–63
,
165
,
180–81

swallowed by accident,
86–87

unsanitary,
33

water, body,
106
,
130–32
,
161

loss of,
130–32
,
134

need for,
94
,
105–6
,
109

water, fresh

collected from rain,
98
,
105–7

extracted from air,
94–95
,
144–45

extracted from plants,
61
,
145
,
148

finding at sea,
94
,
107

finding in desert,
137
,
148–49

mixing with seawater,
109

records of survival without,
138

from underwater springs,
167–70

Watson, Terry,
119–20

Weathers, Beck,
222
,
225–35
,
280–81
,
289–91

weightlessness,
247–48
,
250

weight loss,
112
,
120
,
153

“wet-porch” zone,
239–41

whale, killer,
97

Whitson, Peggy,
241

willpower,
52
,
88
,
90
,
118
,
285–87

loss of, from oxygen lack,
90

will to survive,
276–92

wind,
125
,
142

windpipe,
244

witch doctor,
38–39

women, body fat of, and survival,
121–22

wounds, human body’s innate response to,
33–34

wrist, cut in suicide attempt,
26
,
32

Yaga Indians,
202

yak,
212

Yale University, Hospital of,
16

yoga,
287

Zancudo Cocha lake,
35