impulsivity, 10 , 152 , 163
see alsodisinhibition
incongruity, 50 – 52
inhibition, 9
injuries and illness, 71 , 84 – 86 , 137 – 139 ,
173 – 174
innovation, 132
intense interactions, 99 – 100
intense love, 107 – 110
interactionseesocial interaction
intercultural friendships, 100 – 102
interleukin-6 (IL-6), 177
International Space Station (ISS),
126 – 127
internet gaming, 150 – 151
interpersonal intelligence, 106 – 107
intrapersonal intelligence, 105 – 106
introversion, 8 , 9Jackson, Chris, 124
James, William, 36
jobsseecareers
Joireman, Jeff, 153
jokes, 49 – 52
Jung, Carl, 8
justification of risk-taking, 124 – 125leadership, 132
Lee, John Allen, 102
Lee, Joonbum, 55
leisure activities, 1 – 4 , 69 – 70
ice climbing, 76 – 78 , 171
mud runs, 67 – 69
roller blading, 70 – 71
wheelchair motocross, 81 – 82
wingsuiting, 82 – 88
Lepp, Andrew, 58
Likert scales, 14
love
styles of, 102 – 103
see alsoromantic relationships
ludic love, 103McCrae, Robert, 10
MacIntyre, Olathe, 126 – 129manic love, 103
MAO (monoamine oxidase), 39 – 40 , 42
marshmallow test, 154 – 155
Mayer, John, 105
medical careers, 121 – 125 , 130 – 131
meditation, 91 , 175
mental health, 173 – 174
mental health work, 131 , 168
methamphetamine, 147
methylation, 46 – 47
Michelle, Walter, 154 – 155
military personnel, 130 – 132 , 166 – 168
Minnesota Study of Twins Raised Apart
(MISTRA), 35
monoamine oxidase (MAO), 39 – 40 , 42
mountain climbing, 69 , 137 – 139
mountain sickness, 137 – 139
mud runs, 67 – 69
multitasking, 54 – 55
museum of the mind, 58
music, 53
Musolino, Robert, 117
Mustika, Martina Dwi, 124Neeb, Michael, 139
needseecraving/need
neural motivation system, 38
neuroticism, 9 – 10 , 11
neurotransmitters, 39 – 40
Niagara Falls, 76 – 78
norepinephrine, 30 , 38 , 42 , 43
novelty, 172 , 174 , 178 – 179obstacle course races (OCR), 67 – 69
O’Neill, Timothy, 72 , 73 – 74 , 170
openness to experience, 10
optimal experience, 29
optimal level theory, 31 – 33Pamplona, 5
Paradox Sports, 170 – 173
parental influences, 44 – 45 , 47 , 109 ,
146 – 147
parenthood, 109 , 111 – 112
Pegoraro, Ann, 88 – 90231 / IndexDownloaded from https://www.cambridge.org/core. Access paid by the UCSF Library, on 11 Nov 2019 at 14:19:22, subject to the Cambridge