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Awhile back I was doing a HIIT (High Intensity Interval Training) workout over on a nearby running\/biking trail. Along the trail there\u2019s a fairly steep hill that takes about a minute to sprint up at full speed. For my workout, I would charge up the hill as fast as I could, walk\/jog back down, and repeat the sequence ten times. It puts you in a nice amount of pain.<\/p>\n
Halfway through the last sprint in my set, my legs and lungs were crying for mercy. I felt sure my body could not possibly run a single more step. But just as I was about to slow down into a walk, a pair of lovely ladies crested over the top of the hill and came jogging towards me. In that moment, an involuntary pride response kicked in, and I somehow found another gear and continued to haul butt to the top of the hill.<\/p>\n
A seemingly insignificant moment in my life, but it actually spurred a great deal of reflection. I had felt sure I was physically spent, but then found deeper reserves of strength left to tap. My mind had lied to me. What else, I wondered, might my mind be lying about? Athletes have always known there is a connection between one\u2019s mind and one\u2019s performance \u2013 that you can will yourself to keep going when the body grows fatigued. But recent studies have shown that the mind can have quite the opposite effect \u2013 slowing you down before you\u2019re actually physically spent. In essence, the very fatigue your brain fights against was created by\u2026your brain!<\/p>\n This fact was fascinatingly demonstrated in a study<\/a> conducted by scientists from the University of Kent in England and the French Institute of Health and Medical Research. In the study, two groups of men spent 90 minutes sitting in a chair. The first group was asked to count flashing letters on a computer screen (a task proven to induce mental fatigue), while the second group watched a relaxing nature video. Then the men in both groups pedaled a specialized ergometer, while electrodes zapped their leg muscles in order to produce \u201cmaximum contractile force.\u201d The more fatigued a muscle is, the less it will respond to these shocks.<\/p>\n The men in the first group who had done the letter counting task tired out 13% faster than those who had watched the movie, and they perceived the exercise as being much more difficult than the second group did.<\/p>\n Yet the muscles of both groups responded exactly the same way to the electrodes<\/i>, producing just as much force from the shocks. The men in the first group, whose minds had been tuckered out by the counting task, felt<\/i> more tired and gave up more easily, but their muscles were in fact just as fresh as the men who had simply watched the movie. As the researchers concluded, \u201cour feelings do not always reflect our physiological state.\u201d<\/p>\n In another study<\/a> conducted at Northumbria University in England, cyclists were put on stationary bikes and told to pedal as fast as they could for about 2.5 miles. After several of these sessions, the cyclists had gotten a sense of what seemed to be the fastest pace they were capable of.<\/p>\n Then the researchers put a computer screen in front of them which displayed a virtual course and two avatars \u2013 one which would represent the current rate at which the participant was pedaling the stationary bike, and one which the cyclist would be \u201cracing\u201d against. In the first group, the cyclists were deceived and told that the avatar they would be \u201ccompeting\u201d against would be moving at the pace of their own previous best effort. In fact, the avatar would be going 2% faster than the cyclist\u2019s personal record. In the second group, the participants were informed upfront about the competing avatar\u2019s speedier pace.<\/p>\n Cyclists in the second group, doubting they could possibly go 2% faster than their previous best effort, gave up and simply matched their old PR.<\/p>\n But the deceived cyclists, believing that the competing avatar was simply going at their own best pace, and knowing they were capable of duplicating that pace, sped up to catch it, and thus unknowingly went 2% faster than they ever had before. (2% may not seem like much, but it can make a huge difference in a race environment.)<\/p>\n What\u2019s going on in these studies? While the extent of an athlete\u2019s capabilities has usually focused on things like muscles, heart, and lungs, it seems the mind also plays a crucial role in setting limits for one\u2019s performance. Timothy Noakes, professor of exercise and sports science at the University of Cape Town in South Africa, calls this limit-setter the \u201ccentral governor\u201d of the brain. And this governor is conservative. It\u2019s easily worried about you using up your body\u2019s limited fuel, and so puts the brakes on your exertion long before you\u2019ve reached your true physical limits. Yet you may never know that you\u2019ve got more to give, as your brain is very adept at deceiving you into thinking that you can\u2019t possibly go any faster or harder.<\/p>\n In other words, your brain is lazy, and a no good, yellow-bellied liar.<\/p>\n Just as your brain can convince you that you\u2019ve reached your physical limits when you really haven\u2019t, it can also tell you you\u2019re too tuckered out for mental tasks, when your noodle actually has more to give.<\/p>\n Some of the most fascinating studies<\/a> on the link between the mind and physical exertion have shown that simply swishing a sugary drink in your mouth and then spitting it out without swallowing it can boost athletic performance by 2% (again, despite the small number, this represents a significant boost). Your body uses glucose for fuel during exercise, but the swish-n-spit effect occurs even when the muscles still have plenty of glucose left to burn, and even though the athlete hasn\u2019t actually ingested any glucose<\/i>! The sugary drink in the mouth tricks the brain\u2019s anxious, bean-counting central governor into thinking that more fuel is on the way, leading it to relax its guard on your supply so you can continue to push yourself.<\/p>\n Researchers wondered if the swish-n-spit effect would also work when it came to sticking with purely mental tasks. As we\u2019ve discussed before, your willpower is a finite resource that is depleted each time you exercise your self-control<\/a>. If you use your willpower up on one task, you then have less of it for the next one. It used to be thought that this process of willpower depletion occurred because exercising self-control utilized glucose in the body, and the lower your glucose went, the less willpower you had at your disposal. For this reason, eating something was suggested as a way to replenish your willpower supply, and indeed studies showed that willpower-depleted individuals were able to exercise greater self-control after they had a snack, particularly something sweet.<\/p>\n But a recent study<\/a> found that simply swishing a sugary drink in the mouth without swallowing it had the very same effect. Participants were first given a willpower-sapping task like working on impossible-to-solve math problems, reading a boring piece of writing, or avoiding a plate of cookies and eating radishes instead. With their mental fortitude sapped, they would then give up more easily when presented with another tedious task. However, when the participants swished their mouths with a sugary drink in between the self-control-requiring tasks, they stuck with them longer. Even though the participants hadn\u2019t actually ingested any glucose, sensing sugar in the mouth was enough to trick the anxious, fuel-monitoring central governor into girding up their minds for another round of effort.<\/p>\n Just as with physical exertion, your brain lies to you about what you\u2019re mentally capable of; it tells you your willpower is tapped out, when really there\u2019s plenty of mental energy being held in reserve.<\/p>\n The brain not only gets anxious about expending too much energy in the midst of physical and mental exertions, it also wrings its metaphorical hands when simply anticipating<\/i> a challenge to your emotional capabilities.<\/p>\n People often think that if something tragic befell them \u2013 like losing a spouse or becoming paralyzed in an accident \u2013 they\u2019d be crushed and could not possibly go on and lead a happy life. But as we discussed in this post<\/a>, studies have not born this out and in fact show that human beings are far more resilient than we usually give ourselves credit for.<\/p>\n In studies<\/a> done on older couples — those who had been married for decades — 6 months after losing their spouses, 50% of the surviving partners experienced little to no symptoms of acute grief or depression, and only 10% of participants suffered from a chronic depression that lasted longer than 18 months. This is not to say the participants did not miss their deceased spouses a good deal, but that happiness did return to their lives relatively quickly, and their grief was not as debilitating as many people imagine it would be.<\/p>\n Another study<\/a> that followed people after they had become paralyzed in an accident found that the happiness of the victims returned to near their baseline pre-accident levels within months following the injury. And they took more pleasure in mundane tasks and felt more optimistic about their future prospects of happiness than another group which was also studied — those who had won the lottery.<\/i><\/p>\n Contrary to what you might think when you ponder dealing with a tragedy and feel a pit in your stomach, human beings have an incredible capacity to bounce back from even the most crushing of blows.<\/p>\n Now in fairness to our dear old brain, it\u2019s anxious and lazy for a reason. Back when basic survival was its most paramount concern, conserving your energy helped keep you alive.<\/p>\n Nowadays, since most of us have the basic necessities of life, we can afford to turn our focus to the top tier of Maslow\u2019s Hierarchy of Needs<\/a>, i.e., self-actualization. Thus in the modern world, our brain\u2019s desire to maintain the status quo can hold us back instead of moving us forward, and can keep us from becoming \u201csuperhuman.\u201d<\/a><\/p>\n So how do you gain access to these well-guarded reserves of strength?<\/p>\n The first step is to simply call your brain on its bluff. When I want to rest during my workout or feel like I don\u2019t have enough mental energy to focus while I\u2019m reading, I seriously have found it quite helpful to think something like, \u201cShut the flip up brain! You\u2019re lying to me, bro!\u201d (My brain and I are bros.) More positive self-talk (“I’m feeling good!) works the best for some people. Either way, it\u2019s like telling the emperor he has no clothes. Simply acknowledging the illusion that you’re totally tapped out can vaporize it, providing the spurt of motivation you need to dig deeper. Studies<\/a> have in fact proven the efficacy of this kind of motivational self-talk; those who engage in it throughout their workout are able to exert themselves harder and longer, while actually feeling that the exercise is less difficult, than those who do not give themselves a continual pep talk.<\/p>\n With HIIT training, using a treadmill is something else I have found that works in upping the intensity of your effort. As opposed to running outside or on a track where you can often unconsciously slow down even when you feel you\u2019re busting butt, on a treadmill you can lock in a very challenging pace, and then have no choice but to run that fast.<\/p>\n When it comes to both physical and mental challenges, introducing competition is key in helping you reach a level you wouldn\u2019t have been able to training by yourself. In a study similar to the first one mentioned at the start of this article, cyclists were told they were racing against a competitor who was hidden behind a large screen. This competitor and his pace were projected for the cyclist to see as he pedaled furiously on a stationery bike. In reality, the \u201ccompetitor\u201d was simply an avatar moving at the participant\u2019s own previous best pace. Spurred by the fire of competition to work harder, the cyclist was able to beat himself and go faster than he ever had before.<\/p>\n
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\nAs it turns out, a great deal. We all have deep wells of strength that we may never even know exist, as they are closely guarded by a brain that would rather loaf and maintain the status quo than take you to the next level. But don\u2019t be fooled by this tight-fisted sentinel \u2013 you\u2019re physically, mentally, and emotionally stronger than you think.<\/p>\nYou\u2019re Physically Stronger Than You Think<\/b><\/h3>\n
You\u2019re Mentally Stronger Than You Think<\/b><\/h3>\n
You\u2019re Emotionally Stronger Than You Think<\/b><\/h3>\n
Tapping Into Your Hidden Wells of Strength<\/b><\/h3>\n