0:00:25.242,0:00:26.791 I have a question for you. 0:00:27.691,0:00:32.033 Would you exercise if you thought[br]it would not impact your appearance? 0:00:33.393,0:00:37.402 As a culture, we are deeply[br]invested in appearance. 0:00:38.542,0:00:42.523 Modern Western culture[br]emphasizes perfection and youth 0:00:42.543,0:00:45.781 and stigmatizes individuals[br]who don't meet certain ideals. 0:00:46.531,0:00:48.484 We feel the pressure. 0:00:48.494,0:00:52.062 We risk our good health every day[br]to look a certain way. 0:00:54.132,0:00:57.482 The relationship between exercise[br]and appearance is murky, 0:00:57.482,0:01:01.701 but the deeper health benefits are there:[br]prevention of brain and heart disease, 0:01:01.701,0:01:05.445 improvement of bone and joint health,[br]increased muscle strength. 0:01:07.276,0:01:09.305 So back to my question. 0:01:09.305,0:01:13.165 If you knew that you might not lose[br]weight, you might even gain weight, 0:01:13.165,0:01:16.017 but you would improve the functional[br]health of your body, 0:01:17.097,0:01:19.077 would you still go to the gym today? 0:01:20.717,0:01:23.549 Back in grad school,[br]I developed a technology 0:01:23.549,0:01:27.922 that measures how people perceive[br]their body weight, size, and shape. 0:01:28.992,0:01:31.544 Our work at that time[br]found that more often than not, 0:01:31.544,0:01:34.434 and even across diverse[br]cultural backgrounds, 0:01:34.794,0:01:38.145 we are unhappy with the way[br]our bodies look. 0:01:38.685,0:01:42.643 So much so that a term was coined[br]to describe this effect. 0:01:43.473,0:01:46.075 "Normative discontent." 0:01:47.585,0:01:52.143 Basically, we've normalized[br]being unhappy with our appearance. 0:01:53.463,0:01:55.554 We struggle with the way we look 0:01:55.994,0:01:57.752 and health behaviors - 0:01:58.052,0:02:01.930 eating, exercise, drinking water -[br]are marketed to us 0:02:01.930,0:02:05.930 for the sole purpose of helping us[br]look the way we think we should. 0:02:07.680,0:02:10.568 But there is a huge disconnect here. 0:02:11.138,0:02:14.789 The disconnect between health,[br]performance, and appearance. 0:02:18.110,0:02:20.859 As a scientist, I've spent[br]nearly two decades studying 0:02:20.859,0:02:23.690 how we can optimize[br]our bodies and performance 0:02:23.690,0:02:26.049 and thrive psychologically [br] 0:02:26.399,0:02:29.590 or be happy at the same time. 0:02:30.740,0:02:34.112 Let's take a moment and think[br]about this in a slightly different way. 0:02:34.112,0:02:35.563 Take architecture. 0:02:35.833,0:02:40.557 In the late 19th century, shifts in[br]economics, technology, and design 0:02:40.557,0:02:43.874 made it necessary to create[br]new architecture styles. 0:02:44.684,0:02:46.322 If a style and shape of a building 0:02:46.322,0:02:48.442 were not going to be chosen[br]from past models, 0:02:48.442,0:02:52.382 something had to determine its form[br]or what the building would look like. 0:02:53.392,0:02:56.128 The late Louis Sullivan said - 0:02:56.967,0:02:58.065 architect - 0:02:59.241,0:03:01.678 "Form ever follows function." 0:03:04.722,0:03:07.011 This was a profound shift[br]in thinking at the time 0:03:07.011,0:03:09.490 because what he's saying[br]is that function comes first 0:03:09.490,0:03:11.132 and form comes second. 0:03:12.701,0:03:15.761 This concept is not hard to see[br]in our world today. 0:03:15.761,0:03:18.361 Houses in South Louisiana[br]are built up off the ground 0:03:18.361,0:03:20.903 to protect them from flood waters. 0:03:21.613,0:03:26.881 The Pentagon has intentional design[br]that supports its function. 0:03:28.531,0:03:31.105 It needed to hold 40,000 people, [br] 0:03:31.325,0:03:33.883 have 10,000 spaces to park cars, 0:03:34.043,0:03:36.122 four million square feet of office space, 0:03:36.122,0:03:38.383 and not be higher than four stories. 0:03:39.403,0:03:42.574 So if we look at how and why[br]we design our buildings today, 0:03:42.574,0:03:45.652 it's easy to conclude[br]that function comes first. 0:03:46.772,0:03:50.553 But why is it so hard to apply[br]the same logic to our bodies? 0:03:52.973,0:03:56.021 Today, I'd like to offer[br]a shift in perspective 0:03:56.021,0:03:58.093 on our bodies for us to consider. 0:03:59.513,0:04:01.381 Function over form. 0:04:03.321,0:04:07.361 Not unlike the architecture example,[br]form ever follows function, 0:04:07.361,0:04:11.670 means prioritizing performance[br]and purpose over appearance. 0:04:13.200,0:04:14.741 However, 0:04:14.741,0:04:16.142 every day, 0:04:16.142,0:04:19.502 in many different moments,[br]in many different situations, 0:04:19.502,0:04:21.192 we ask ourselves: 0:04:22.282,0:04:24.302 how does my body look? 0:04:25.092,0:04:28.423 Framing it up as an object to be judged. 0:04:29.963,0:04:32.555 What if we shifted this self-reflection [br] 0:04:33.495,0:04:35.135 and we asked ourselves: 0:04:35.995,0:04:38.310 how does my body work? 0:04:40.872,0:04:44.223 If we look at those[br]in our population and take cues 0:04:44.223,0:04:47.732 from those who are expected[br]to be high performers, 0:04:47.732,0:04:50.552 like US army soldiers and athletes, 0:04:50.552,0:04:52.891 we would be focused on just that. 0:04:53.571,0:04:56.941 Performance. How does my body work? 0:04:59.392,0:05:01.491 Soldiers engage in readiness training, 0:05:01.491,0:05:05.023 which is designed to prepare them[br]for their mission, optimize performance, 0:05:05.023,0:05:06.293 and prevent injury. 0:05:06.673,0:05:11.423 In recent times, military training[br]also includes resilience, 0:05:11.423,0:05:14.392 the ability to bounce back[br]from challenging circumstances, 0:05:14.392,0:05:15.992 mental and physical. 0:05:17.032,0:05:21.881 If soldiers on a mission, or athletes[br]performing in a high-stakes competition 0:05:21.881,0:05:23.472 get distracted by form, 0:05:23.472,0:05:26.474 it can have serious[br]and life-threatening consequences. 0:05:26.474,0:05:30.962 For example, female athletes,[br]who are focused on appearance goals, 0:05:30.962,0:05:35.513 such as being worried about[br]being judged in tight-fitting uniforms 0:05:35.963,0:05:40.022 often engage in unhealthy behaviors[br]to achieve those appearance goals. 0:05:40.302,0:05:43.574 This can result in weak bones,[br]severe injury, 0:05:43.944,0:05:45.964 and problems with fertility. 0:05:45.964,0:05:50.304 And these are problems[br]that affect life for the long term. 0:05:51.141,0:05:54.106 So it's through the study of these[br]high-performance populations 0:05:54.106,0:05:58.042 we realized that a focus on performance[br]and function and resilience 0:05:58.042,0:05:59.972 is not just for the elite. 0:06:01.172,0:06:03.223 So as civilians, 0:06:03.863,0:06:05.943 not soldiers, not athletes, 0:06:06.703,0:06:10.462 are we thinking about optimizing[br]our bodies for the long haul? 0:06:11.192,0:06:13.521 Are we thinking about something else? 0:06:16.172,0:06:18.774 I was a competitive gymnast for 10 years. 0:06:19.254,0:06:20.932 Quite a while ago now. 0:06:22.742,0:06:25.270 And after a spine injury, I left the sport 0:06:25.270,0:06:29.032 and struggled to really figure out[br]what my health habits should be. 0:06:29.032,0:06:31.783 Eating, exercise, stress reduction. 0:06:32.173,0:06:33.782 It was overwhelming. 0:06:34.352,0:06:37.342 And after a shoulder repair[br]and a left ankle reconstruction, 0:06:37.342,0:06:40.143 all I could think about[br]was getting back into shape. 0:06:40.803,0:06:42.964 I thought this was healthy. 0:06:42.964,0:06:47.391 But at the time the correlation[br]between my habits and my body function 0:06:47.391,0:06:49.471 never occurred to me, because [br] 0:06:49.741,0:06:52.661 doesn't body size determine health? 0:06:54.962,0:06:56.233 So a few years ago, 0:06:56.233,0:06:59.692 I found out that I have a condition[br]that makes me more prone to injury. 0:06:59.692,0:07:03.623 So after I cracked a rib and had[br]a complete right foot reconstruction 0:07:03.623,0:07:05.933 and then was told I needed a neck fusion, 0:07:06.413,0:07:09.183 I was thrust in this period where[br]all of my time and energy 0:07:09.183,0:07:12.472 was spent trying to regain the ability[br]to use my body parts 0:07:12.472,0:07:15.725 and strengthen others[br]to prevent further loss of function. 0:07:16.695,0:07:18.951 This was a defining moment. 0:07:19.511,0:07:22.232 Because when we are focused[br]on regaining function 0:07:22.822,0:07:25.073 from an injury or from surgery 0:07:25.073,0:07:27.433 or fighting to survive an illness 0:07:28.203,0:07:30.123 it shifts our perspective. 0:07:30.573,0:07:33.234 And it makes function our primary focus[br] 0:07:33.234,0:07:35.664 and form our secondary focus. 0:07:36.004,0:07:38.823 It forces us into this headspace. 0:07:39.963,0:07:43.658 So why is it so hard to get there[br]when our lives are on the line? 0:07:46.548,0:07:50.448 Given the explosion[br]of social media and technology, 0:07:50.818,0:07:54.038 we all have access to overwhelming[br]amounts of health information 0:07:54.038,0:07:55.718 in a constant stream. 0:07:55.938,0:07:58.647 Yet with all of this information[br]at our fingertips, 0:07:58.647,0:08:00.528 we're at a crisis point. 0:08:00.918,0:08:05.968 Because the truth is, we no longer know[br]what healthy behavior really is. 0:08:07.768,0:08:12.818 "Health behavior" is often[br]not really healthy behavior. 0:08:13.108,0:08:16.677 It's appearance-driven behavior[br]disguised as health behavior. 0:08:16.677,0:08:18.167 And given our cultural climate, 0:08:18.167,0:08:20.678 it's become really difficult[br]to tell the difference. 0:08:23.895,0:08:25.567 Health behavior: 0:08:25.567,0:08:28.797 behavior to attain, maintain,[br]or regain good health, 0:08:28.797,0:08:31.239 mental and physical[br]and prevent illness. 0:08:32.239,0:08:34.109 So given this definition, 0:08:34.109,0:08:38.189 if we are only exercising the body parts[br]that we want to look a certain way, 0:08:38.189,0:08:40.940 aren't we cheating[br]ourselves out of so much? 0:08:41.910,0:08:45.278 Strength training, for example,[br]can prevent injury down the road. 0:08:46.048,0:08:48.989 Drinking water for hydration,[br]sleeping for recovery, 0:08:48.989,0:08:52.320 practicing mindfulness[br]and meditation for stress reduction. 0:08:52.910,0:08:54.554 Or the boundless science 0:08:54.554,0:08:59.028 that suggests nutrition[br]as fuel and medicine for the body 0:08:59.028,0:09:01.518 versus a simple calorie count. 0:09:03.809,0:09:08.718 Maintaining good health and function[br]is complex and individualized. 0:09:11.149,0:09:15.749 The fact is our bodies don't all respond[br]the same way to healthy behavior. 0:09:17.848,0:09:20.437 For example, there is[br]great data that shows 0:09:20.437,0:09:23.657 that our bodies don't all respond[br]the same way to exercise. 0:09:24.270,0:09:27.509 So because of this, our appearance goals[br]and our function goals 0:09:27.509,0:09:29.864 often aren't even compatible. 0:09:31.468,0:09:33.019 So guess what. 0:09:34.050,0:09:38.100 Healthy body function[br]doesn't look the same on everyone. 0:09:38.889,0:09:41.750 And if we take athletes[br]at the top of their performance game, 0:09:41.750,0:09:44.201 we see significant diversity in body type. 0:09:47.290,0:09:49.339 Now, this was a radical thought. 0:09:49.879,0:09:54.729 Because it's our default setting to make[br]assumptions about people's health habits 0:09:54.729,0:09:57.448 and their body function[br]based on appearance. 0:09:59.638,0:10:03.470 You simply cannot judge[br]function by appearance. 0:10:05.280,0:10:08.999 And if you can't judge function by form,[br]it'd seem that we are way off the mark 0:10:08.999,0:10:11.109 as using appearance[br]as some metric for health 0:10:11.109,0:10:13.540 despite what we've been[br]conditioned to believe. 0:10:13.860,0:10:15.831 Think about that for a second. 0:10:17.641,0:10:20.381 Culture says it's how we look. 0:10:22.449,0:10:25.373 What if we said it's how we feel [br] 0:10:25.983,0:10:28.313 and we can do with our body? 0:10:29.979,0:10:32.051 Why should we care about this? 0:10:32.779,0:10:34.571 Because as fate would have it, 0:10:34.901,0:10:39.170 science says that it is a good thing[br]to focus on function. 0:10:39.570,0:10:42.739 When we focus on function,[br]we're more likely to engage 0:10:42.739,0:10:46.542 in actual healthy behaviors,[br]such as balanced exercise, 0:10:46.542,0:10:48.813 eating fruits and vegetables,[br]wearing sunscreen, 0:10:48.813,0:10:51.113 not smoking, going to check-ups. 0:10:53.425,0:10:56.991 But even more powerful than that[br]is our intention. 0:10:58.602,0:11:01.120 Because when we're focused on form, 0:11:01.120,0:11:02.573 as our main focus, 0:11:02.573,0:11:04.923 it can sabotage our health behavior. 0:11:06.635,0:11:07.653 For example, 0:11:07.653,0:11:11.563 when we're only focused on what[br]exercise can do to change our appearance, 0:11:11.973,0:11:14.357 we get less satisfaction[br]out of the exercise 0:11:14.357,0:11:16.732 and we are more likely to give up. 0:11:19.284,0:11:22.843 So this focus on function[br]I've been talking about; 0:11:23.803,0:11:26.074 it's a deeper appreciation.[br] 0:11:27.084,0:11:28.724 It's a respect. 0:11:29.774,0:11:31.229 It's a respect for our bodies 0:11:31.229,0:11:33.585 that includes attending[br]to its functional needs 0:11:33.585,0:11:37.270 even if it doesn't meet the appearance[br]ideal you have in mind for it. 0:11:41.004,0:11:45.444 As an athlete, as a scientist developing[br]programs for soldiers and athletes, 0:11:47.133,0:11:49.492 treating eating disorder[br]patients in the hospital, 0:11:49.492,0:11:52.982 and guiding bariatric surgery patients[br]along their weight-loss journeys, 0:11:53.532,0:11:56.642 I've learned that we all work through[br]these functional needs, 0:11:56.642,0:11:59.965 whether in elite performance[br]or in daily life. 0:12:01.823,0:12:03.634 Ask yourself: 0:12:03.634,0:12:05.944 what does your body do for you? 0:12:07.904,0:12:10.023 It does more than you realize. 0:12:11.383,0:12:15.254 Take time to appreciate the things[br]about your body that work. 0:12:16.394,0:12:21.523 Be proactive and deliberate[br]about how you want your body to work. 0:12:23.504,0:12:29.412 Every moment is an opportunity to start[br]where we are and optimize our function. 0:12:32.892,0:12:34.712 Start with your intention. 0:12:38.604,0:12:44.702 Science also says that when we cultivate[br]an environment of appreciation and respect 0:12:44.702,0:12:49.534 for diverse bodies and we encourage[br]each other to engage in healthy behaviors, 0:12:49.534,0:12:51.732 not based on appearance goals, [br] 0:12:52.342,0:12:53.952 we all do better. 0:12:55.852,0:12:58.322 So drop the body-bullying. 0:12:58.832,0:13:00.855 It's not our judgement to make. 0:13:01.985,0:13:08.678 We must convince our younger generation[br]that a healthy body is an ideal body. 0:13:09.308,0:13:13.176 And that just because something[br]is a standard does not make it ideal. 0:13:15.526,0:13:19.585 Architecture needed to[br]embrace a shift in perspective. 0:13:20.795,0:13:22.016 And so do we. 0:13:22.566,0:13:23.699 Thank you. 0:13:23.699,0:13:25.669 (Applause)