1 00:00:02,040 --> 00:00:07,360 Speaker 1: Welcome to brain Stuff from how Stuff Works. Hey, brain stuff, 2 00:00:07,400 --> 00:00:11,600 Speaker 1: Christian Sager. Here, let's talk about purity because we are 3 00:00:11,640 --> 00:00:16,120 Speaker 1: surrounded by toxic stuff in this modern world. Car emissions 4 00:00:16,160 --> 00:00:20,599 Speaker 1: in our air, factory runoff in our water, herbicides and pesticides, 5 00:00:20,600 --> 00:00:24,000 Speaker 1: and our food trolls and our comments sections. If our 6 00:00:24,040 --> 00:00:28,600 Speaker 1: bodies are temples, every pizza role is a desecration. How 7 00:00:28,680 --> 00:00:33,160 Speaker 1: can we become pure again? Well? Juice cleanses supposedly rid 8 00:00:33,200 --> 00:00:37,879 Speaker 1: our bodies of toxins and restore our digestive systems. Depending 9 00:00:37,920 --> 00:00:42,159 Speaker 1: on the specific and sometimes copyrighted cleans you spend a 10 00:00:42,200 --> 00:00:45,200 Speaker 1: couple of days to a couple of weeks consuming nothing 11 00:00:45,560 --> 00:00:50,440 Speaker 1: but liquefied fruits, vegetables, and maybe some nut milk. Since 12 00:00:50,520 --> 00:00:53,519 Speaker 1: lots of people are pretty bad about eating enough fruits 13 00:00:53,520 --> 00:00:56,240 Speaker 1: and vegetables to begin with, this may mean that during 14 00:00:56,280 --> 00:00:59,440 Speaker 1: a juice cleanse you'd be getting more vitamins and minerals 15 00:00:59,440 --> 00:01:02,520 Speaker 1: than usual. Wool. These are substances that your body needs 16 00:01:02,520 --> 00:01:06,440 Speaker 1: to turn food into energy and to grow and maintain cells. 17 00:01:06,520 --> 00:01:10,360 Speaker 1: Some even have antioxidant properties, which means that they can 18 00:01:10,400 --> 00:01:15,319 Speaker 1: help prevent cellular damage under particular circumstances. The benefits of 19 00:01:15,360 --> 00:01:18,399 Speaker 1: these vitamins and minerals are real, but keep in mind 20 00:01:18,440 --> 00:01:21,240 Speaker 1: that your body can only process a certain amount of 21 00:01:21,280 --> 00:01:24,240 Speaker 1: them at once. After that, you're just going to excrete 22 00:01:24,240 --> 00:01:27,759 Speaker 1: the rest. Research does show that eating fruits and vegetables 23 00:01:27,880 --> 00:01:31,720 Speaker 1: rich in these substances can decrease some risk of some 24 00:01:31,880 --> 00:01:35,080 Speaker 1: diseases in the long run. The key phrase here is 25 00:01:35,160 --> 00:01:37,720 Speaker 1: in the long run. The best way to reap these 26 00:01:37,720 --> 00:01:42,240 Speaker 1: benefits is to consistently eat five or more servings every day. 27 00:01:42,720 --> 00:01:46,200 Speaker 1: One juice binge isn't gonna do much. Consuming nothing but 28 00:01:46,360 --> 00:01:48,920 Speaker 1: juice for a few days also means that you'd get 29 00:01:48,960 --> 00:01:53,080 Speaker 1: a lot less fiber, fat, and protein, and way fewer 30 00:01:53,120 --> 00:01:56,680 Speaker 1: calories than normal. Fats and proteins are just as essential 31 00:01:56,720 --> 00:02:00,640 Speaker 1: for healthy cellular function as vitamins and minerals, and fiber 32 00:02:00,720 --> 00:02:03,880 Speaker 1: in the diet is actually part of your colon's normal 33 00:02:03,960 --> 00:02:07,920 Speaker 1: cleansing system. It absorbs water and water soluble waste in 34 00:02:08,000 --> 00:02:12,720 Speaker 1: your intestines and moves everything on out. Plus fiber can 35 00:02:12,800 --> 00:02:15,919 Speaker 1: slow down your body's uptake of sugar, keeping your blood 36 00:02:15,919 --> 00:02:19,720 Speaker 1: sugar levels more stable without it, and considering the high 37 00:02:19,840 --> 00:02:22,520 Speaker 1: levels of fruit sugars and the limited calories involved in 38 00:02:22,560 --> 00:02:25,720 Speaker 1: a juice diet, you will feel extra hungry and may 39 00:02:25,800 --> 00:02:30,320 Speaker 1: experience dizzy and blood sugar spikes and crashes. A day 40 00:02:30,400 --> 00:02:32,480 Speaker 1: or two of this shouldn't do any harm to the 41 00:02:32,520 --> 00:02:37,000 Speaker 1: average person, but restricting calories and nutrients from much longer 42 00:02:37,040 --> 00:02:40,400 Speaker 1: than that can trigger starvation mode. Your body doesn't know 43 00:02:40,520 --> 00:02:43,320 Speaker 1: when it's going to get more food, so it slows 44 00:02:43,360 --> 00:02:47,200 Speaker 1: your metabolism down. When this happens too often, the change 45 00:02:47,320 --> 00:02:52,000 Speaker 1: can be permanent, so is it worth it Psychologically? Maybe 46 00:02:52,160 --> 00:02:55,200 Speaker 1: you'll probably lose a little weight to the decrease in calories, 47 00:02:55,280 --> 00:02:58,320 Speaker 1: which might be what you're looking for, and people around 48 00:02:58,320 --> 00:03:02,280 Speaker 1: the world have been using short asks to practice mindfulness 49 00:03:02,280 --> 00:03:07,760 Speaker 1: for hundreds, if not thousands of years. But physiologically, juice 50 00:03:07,760 --> 00:03:11,440 Speaker 1: cleanses don't help clear toxins out of your body. The 51 00:03:11,560 --> 00:03:15,360 Speaker 1: thing is that your liver and your kidneys are natural detoxifiers. 52 00:03:15,760 --> 00:03:18,760 Speaker 1: They filter bad stuff out of your body all the time, 53 00:03:19,200 --> 00:03:22,799 Speaker 1: but they need the full complement of nutrients provided by 54 00:03:22,800 --> 00:03:31,320 Speaker 1: a healthy diet in order to do so. Check out 55 00:03:31,360 --> 00:03:33,400 Speaker 1: the brain stuff channel on YouTube, and for more on 56 00:03:33,440 --> 00:03:36,160 Speaker 1: this and thousands of other topics, visit how stuff works 57 00:03:36,240 --> 00:03:49,360 Speaker 1: dot com.