{"id":19396,"date":"2025-06-12T00:00:00","date_gmt":"2025-06-12T00:00:00","guid":{"rendered":"https:\/\/www.scienceinsport.com\/sports-nutrition\/?p=19396"},"modified":"2025-08-27T13:01:22","modified_gmt":"2025-08-27T13:01:22","slug":"hydrate-smarter-perform-better","status":"publish","type":"post","link":"https:\/\/www.scienceinsport.com\/sports-nutrition\/hydrate-smarter-perform-better\/","title":{"rendered":"Hydrate smarter, perform better"},"content":{"rendered":"\n<div class=\"wp-block-cover is-light h1_cover\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"320\" class=\"wp-block-cover__image-background wp-image-19398 size-large\" alt=\"girl holding SiS hydro+\" src=\"https:\/\/www.scienceinsport.com\/sports-nutrition\/wp-content\/uploads\/sites\/3\/2025\/06\/Untitled-1-2-1024x320.jpeg\" data-object-fit=\"cover\" srcset=\"https:\/\/www.scienceinsport.com\/sports-nutrition\/wp-content\/uploads\/sites\/3\/2025\/06\/Untitled-1-2-1024x320.jpeg 1024w, https:\/\/www.scienceinsport.com\/sports-nutrition\/wp-content\/uploads\/sites\/3\/2025\/06\/Untitled-1-2-300x94.jpeg 300w, https:\/\/www.scienceinsport.com\/sports-nutrition\/wp-content\/uploads\/sites\/3\/2025\/06\/Untitled-1-2-768x240.jpeg 768w, https:\/\/www.scienceinsport.com\/sports-nutrition\/wp-content\/uploads\/sites\/3\/2025\/06\/Untitled-1-2-1536x480.jpeg 1536w, https:\/\/www.scienceinsport.com\/sports-nutrition\/wp-content\/uploads\/sites\/3\/2025\/06\/Untitled-1-2-1280x400.jpeg 1280w, https:\/\/www.scienceinsport.com\/sports-nutrition\/wp-content\/uploads\/sites\/3\/2025\/06\/Untitled-1-2-40x13.jpeg 40w, https:\/\/www.scienceinsport.com\/sports-nutrition\/wp-content\/uploads\/sites\/3\/2025\/06\/Untitled-1-2-55x17.jpeg 55w, https:\/\/www.scienceinsport.com\/sports-nutrition\/wp-content\/uploads\/sites\/3\/2025\/06\/Untitled-1-2-100x31.jpeg 100w, https:\/\/www.scienceinsport.com\/sports-nutrition\/wp-content\/uploads\/sites\/3\/2025\/06\/Untitled-1-2.jpeg 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-background-dim\" style=\"background-color:#948e82\"><\/span><div class=\"wp-block-cover__inner-container is-layout-flow wp-block-cover-is-layout-flow\">\n<h1 class=\"wp-block-heading\">Hydrate smarter, perform better<\/h1>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group parapgraph_group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<p><\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group introduction_with_author_group is-vertical is-layout-flex wp-container-core-group-is-layout-8cf370e7 wp-block-group-is-layout-flex\">\n<p><\/p>\n\n\n<div class=\"introduction_lower\"><div class=\"author-box\">\n                <div class=\"author-avatar\"><img data-del=\"avatar\" src='https:\/\/www.scienceinsport.com\/sports-nutrition\/wp-content\/uploads\/sites\/3\/2025\/04\/Headshot-1-1-2-150x150.jpg' class='avatar pp-user-avatar avatar-50 photo ' height='50' width='50'\/><\/div>\n                    <div class=\"author-info\">\n                    <span class=\"written_by\">Written By<\/span>\n                    <h3>Jonah Rosner<\/h3>\n                    <h6><\/h6>\n                <\/div>\n            <\/div><div class='duration_image'><img decoding=\"async\" class=\"lazy time_icon\" loading=\"lazy\" width=\"28\" title=\"28\" src=\"\/sports-nutrition\/wp-content\/themes\/sports-nutrition\/images\/time_icon.svg\" > 5 minutes<\/div><div class='author_share'>Share <div class=\"share_buttons\"><div class=\"ss-inline-share-wrapper\"><div class=\"ss-inline-share-content\"><\/div><\/div><\/div><\/div><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-group parapgraph_group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<p><strong>Ever hit a wall on a long run?<\/strong> That moment when your heart pounds, your legs feel like lead, and your pace just vanishes? Surprisingly, losing <strong>as little as 2% of your body weight in fluid<\/strong> can trigger this performance crash.<\/p>\n\n\n\n<p>But here\u2019s the thing: <strong>chugging plain water isn\u2019t always the answer.<\/strong> To truly conquer your endurance goals, you need a strategic mix of fluids <em>and<\/em> electrolytes. This powerful combo is key to:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Keeping you cool:<\/strong> Proper hydration helps your body sweat efficiently, regulating your core temperature.<\/li>\n\n\n\n<li><strong>Powering your muscles:<\/strong> Essential electrolytes like sodium and potassium are the spark plugs for every muscle contraction.<\/li>\n\n\n\n<li><strong>Fuelling your effort:<\/strong> Good hydration ensures steady blood flow to your gut, helping you absorb those vital carbs and fluids.<\/li>\n<\/ul>\n\n\n\n<p>Get it wrong, and your body can\u2019t cool itself effectively, leading to that dreaded overheating.<\/p>\n\n\n\n<p>Don\u2019t worry, we\u2019ve got you covered! This blog unpacks a simple, <strong>3-step playbook, grounded in the latest research<\/strong>, to help you build your personalised hydration strategy.&nbsp;<\/p>\n\n\n\n<p>Plus, we\u2019ll show you exactly how <a href=\"https:\/\/www.scienceinsport.com\/hydro-plus-electrolyte-drink-mix\"><strong>SiS HYDRO+<\/strong><\/a> can be your secret weapon.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-medium-font-size\"><strong>Unlock Your Potential: Why Smart Hydration is More Than Just Water<\/strong><\/h3>\n\n\n\n<p>You might think hydration is just about drinking water, but for endurance athletes like you, it&#8217;s a game-changer. Here\u2019s why getting your fluid and electrolyte balance right is crucial:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Sustained Performance:<\/strong> Even slight dehydration (losing just 2% of your body weight!) can make your heart work harder, reduce blood flow to your muscles, and cause you to burn through your precious glycogen stores (your body&#8217;s quick energy fuel) much faster.<\/li>\n\n\n\n<li><strong>Beat the Heat:<\/strong> Think of sweat as your personal cooling system. Less fluid means less sweat, and that can send your core temperature soaring, especially on tough workouts.<\/li>\n\n\n\n<li><strong>Crucial Electrolyte Power:<\/strong> Electrolytes are minerals like sodium, potassium, calcium, and magnesium. If these run low, you can expect your power to dip and those dreaded cramps to appear. (We\u2019re talking about the tiny-but-mighty minerals that keep your muscles firing correctly!)<\/li>\n\n\n\n<li><strong>Smooth Digestion &amp; Fueling:<\/strong> Proper hydration keeps blood flowing to your digestive system, which is vital for absorbing the carbohydrates that fuel your performance.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-medium-font-size\"><strong>The &#8220;Too Much Water&#8221; Trap: A Word on Hyponatremia<\/strong>&nbsp;<\/p>\n\n\n\n<p>It&#8217;s not just about <em>too little<\/em> fluid; <em>too much<\/em> plain water can also be a problem. Drinking excessive amounts of water without electrolytes can dilute your blood&#8217;s sodium levels.&nbsp;<\/p>\n\n\n\n<p>This can lead to a dangerous condition called hyponatremia (basically, critically low sodium in your blood), a risk highlighted by research (Hoffman et al., 2012). This is exactly why <strong>you need an electrolyte strategy, not just a water-drinking schedule.<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"825\" height=\"825\" data-id=\"19400\" src=\"https:\/\/www.scienceinsport.com\/sports-nutrition\/wp-content\/uploads\/sites\/3\/2025\/06\/Untitled-2-16.jpeg\" alt=\"\" class=\"wp-image-19400\" srcset=\"https:\/\/www.scienceinsport.com\/sports-nutrition\/wp-content\/uploads\/sites\/3\/2025\/06\/Untitled-2-16.jpeg 825w, https:\/\/www.scienceinsport.com\/sports-nutrition\/wp-content\/uploads\/sites\/3\/2025\/06\/Untitled-2-16-300x300.jpeg 300w, https:\/\/www.scienceinsport.com\/sports-nutrition\/wp-content\/uploads\/sites\/3\/2025\/06\/Untitled-2-16-150x150.jpeg 150w, https:\/\/www.scienceinsport.com\/sports-nutrition\/wp-content\/uploads\/sites\/3\/2025\/06\/Untitled-2-16-768x768.jpeg 768w, https:\/\/www.scienceinsport.com\/sports-nutrition\/wp-content\/uploads\/sites\/3\/2025\/06\/Untitled-2-16-720x720.jpeg 720w, https:\/\/www.scienceinsport.com\/sports-nutrition\/wp-content\/uploads\/sites\/3\/2025\/06\/Untitled-2-16-40x40.jpeg 40w, https:\/\/www.scienceinsport.com\/sports-nutrition\/wp-content\/uploads\/sites\/3\/2025\/06\/Untitled-2-16-55x55.jpeg 55w, https:\/\/www.scienceinsport.com\/sports-nutrition\/wp-content\/uploads\/sites\/3\/2025\/06\/Untitled-2-16-100x100.jpeg 100w\" sizes=\"auto, (max-width: 825px) 100vw, 825px\" \/><\/figure>\n<\/figure>\n\n\n\n<h3 class=\"wp-block-heading has-medium-font-size\"><strong>Your Personalised 3-Step Hydration Playbook<\/strong><\/h3>\n\n\n\n<p>Ready to dial in your hydration? Follow these three simple steps, based on practical science, to create a plan that works for <em>you<\/em>.<\/p>\n\n\n\n<p style=\"font-size:18px\"><strong>STEP 1: Know Your Sweat Rate \u2013 It\u2019s Easier Than You Think!<\/strong><\/p>\n\n\n\n<p>Understanding how much fluid <em>you<\/em> personally lose is the starting point. Here\u2019s how to find out:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Weigh In:<\/strong> Hop on the scale (with minimal clothing) right before a typical 60-minute run.<\/li>\n\n\n\n<li><strong>Run &amp; Record:<\/strong> Go for your run. Keep track of any fluids you drink during it (in liters or milliliters).<\/li>\n\n\n\n<li><strong>Weigh Out:<\/strong> After your run, towel off any excess sweat, and weigh yourself again in the same minimal clothing.<\/li>\n\n\n\n<li><strong>Calculate Your Rate:<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>Sweat Loss (L\/hr) = (Weight Lost in kg + Fluid Drank in L) \/ Duration of Exercise in hours.<\/strong><\/li>\n\n\n\n<li><em>Example: If you lost 0.5 kg and drank 0.5 L in 1 hour, your sweat rate is (0.5 kg + 0.5 L) \/ 1 hr = 1 L\/hr.<\/em><\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p><strong>Pro Tip:<\/strong> Do this a few times in different weather conditions (cool, warm, hot) to understand your personal sweat range.<\/p>\n\n\n\n<p>What are good fluid-loss targets?<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Race Day:<\/strong> Aim to finish having lost <strong>less than 2%<\/strong> of your starting body weight.<\/li>\n\n\n\n<li><strong>Long, Steady Training:<\/strong> Losing up to ~4% body weight can be acceptable and might even help your body adapt over time.<\/li>\n<\/ul>\n\n\n\n<p style=\"font-size:18px\"><strong>STEP 2: Strategize Your Fluid &amp; Electrolyte Intake<\/strong><\/p>\n\n\n\n<p>You don&#8217;t need to replace every single drop you sweat out during exercise. In fact, your gut can generally only absorb about 400\u2013800 ml of fluid per hour, as research indicates (Millard-Stafford, 2015).&nbsp;<\/p>\n\n\n\n<p><strong>Aim to replace 50\u201375% of your sweat losses during your activity.<\/strong><\/p>\n\n\n\n<p>Here\u2019s a simple guide to help you match your needs:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Scenario<\/strong><\/td><td><strong>Target Fluid Replacement (approx.)<\/strong><\/td><td><strong>Target Sodium Intake\u2020 (approx.)<\/strong><\/td><td><strong>Your Smart SiS Solution<\/strong><\/td><\/tr><tr><td><strong>Temperate Run (\u2264 1 hour)<\/strong><\/td><td>~500 ml per hour<\/td><td>~750 mg sodium per 500 ml<\/td><td><strong>2 <\/strong><a href=\"https:\/\/www.scienceinsport.com\/hydro-plus-electrolyte-drink-mix\"><strong>SiS HYDRO+ stick<\/strong><\/a> in 500 ml water<\/td><\/tr><tr><td><strong>Hot\/Humid, Long Run (&gt; 2 hours)<\/strong><\/td><td>600\u2013800 ml per hour<\/td><td>730\u20131500 mg sodium per 500 ml<\/td><td><a href=\"https:\/\/www.scienceinsport.com\/hydro-plus-electrolyte-drink-mix\"><strong>SiS HYDRO+<\/strong><\/a> (adjust strength) and\/or SiS Hydro tablets<\/td><\/tr><tr><td><strong>Cold Conditions (still sweating!)<\/strong><\/td><td>250\u2013400 ml per hour<\/td><td>~350 mg sodium per 500 ml<\/td><td><strong>1 <\/strong><a href=\"https:\/\/www.scienceinsport.com\/hydro-plus-electrolyte-drink-mix\"><strong>SiS HYDRO+<\/strong> <\/a><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><em>\u2020These are practical guidelines; individual needs may vary.<\/em><\/p>\n\n\n\n<p><strong>Why <\/strong><a href=\"https:\/\/www.scienceinsport.com\/hydro-plus-electrolyte-drink-mix\"><strong>SiS HYDRO+<\/strong><\/a><strong> is Your Go-To Hydration Partner:<\/strong> It\u2019s designed specifically for athletes like you:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Optimised Electrolytes:<\/strong> Delivers approximately <strong>350 mg of sodium<\/strong> plus other key minerals in every 500 ml serving, hitting that sweet spot for electrolyte replacement.<\/li>\n\n\n\n<li><strong>Virtually Calorie-Free:<\/strong> Makes it super easy to pair with your existing SiS GO Isotonic Gels or other food choices without overloading on calories.<\/li>\n\n\n\n<li><strong>Fast &amp; Easy:<\/strong> Dissolves quickly and is designed to be gentle on your stomach \u2013 no fizzy discomfort.<\/li>\n<\/ul>\n\n\n\n<p><strong>For Heavy Sweaters:<\/strong> If you know you lose a lot of salt (e.g., salty sweat stains on your gear, or if your sweat rate is high and you lose &gt;1000 mg sodium per hour), consider using 1\u00bd\u20132 <a href=\"https:\/\/www.scienceinsport.com\/hydro-plus-electrolyte-drink-mix\">SiS HYDRO+<\/a> sticks per 500 ml.<\/p>\n\n\n\n<p style=\"font-size:18px\"><strong>STEP 3: Listen to Your Body \u2013 Monitor &amp; Adjust<\/strong><\/p>\n\n\n\n<p>Your plan isn&#8217;t set in stone. Use these cues to fine-tune:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Thirst is a Guide (But Not the Only One):<\/strong> While listening to your thirst is important, in extreme heat or during intense efforts, consider setting a reminder to sip every 15-20 minutes.<\/li>\n\n\n\n<li><strong>Gut Check:<\/strong> Feeling a sloshing stomach? Your sips might be too big, or you might be drinking too frequently. Try smaller, more regular sips, but don\u2019t skimp on the electrolytes.<\/li>\n\n\n\n<li><strong>Post-Run Clues:<\/strong> Weigh yourself after runs. Aim to replenish any remaining fluid deficit gradually. Clear, pale urine is usually a good sign of hydration.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading has-medium-font-size\"><strong>Avoid These 4 Common Hydration Pitfalls!<\/strong><\/h3>\n\n\n\n<p>Even experienced athletes can slip up. Here are some common hydration mistakes and how you can easily fix them:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>The Pitfall<\/strong><\/td><td><strong>Why It Sabotages Your Performance<\/strong><\/td><td><strong>The Simple SiS Fix<\/strong><\/td><\/tr><tr><td><strong>1. Relying on Plain Water for Long Efforts<\/strong><\/td><td>Can dilute your body&#8217;s sodium levels, leading to cramps or confusion.<\/td><td>Swap your plain water for <strong>SiS HYDRO+<\/strong>.<\/td><\/tr><tr><td><strong>2. Trying to Match Sweat Loss 1:1<\/strong><\/td><td>Your gut likely can&#8217;t absorb more than ~800 ml per hour, leading to uncomfortable sloshing.<\/td><td>Aim to replace <strong>50\u201375%<\/strong> of your sweat loss. Focus on cooling your skin externally too (e.g., water over head).<\/td><\/tr><tr><td><strong>3. Trying Something New on Race Day<\/strong><\/td><td>&#8220;Race day GI roulette&#8221; is never fun!<\/td><td>Always practice your <strong>entire hydration and nutrition strategy (including SiS HYDRO+)<\/strong> during your long training runs.<\/td><\/tr><tr><td><strong>4. Skipping Pre-Hydration<\/strong><\/td><td>Starting your workout or race already in a fluid deficit.<\/td><td>Drink about <strong>500ml of an electrolyte drink (like SiS HYDRO+) 2\u20133 hours before<\/strong> you start.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Your Hydration Action Plan: Get Started Today!<\/strong><\/h3>\n\n\n\n<p>Feeling empowered to take control of your hydration? Here\u2019s your simple checklist to put this all into practice:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>This Week&#8217;s Mission:<\/strong> Conduct your first <strong>sweat rate test<\/strong> on a typical run.<\/li>\n\n\n\n<li><strong>Build Your Bottle Strategy:<\/strong> Based on your results, plan how much fluid and how many <strong>SiS HYDRO+<\/strong> sticks (remember, \u2248350 mg sodium per 500ml) you\u2019ll need for different sessions.<\/li>\n\n\n\n<li><strong>Practice Makes Perfect:<\/strong> <strong>Always test your full hydration and fueling plan<\/strong> (including <a href=\"https:\/\/www.scienceinsport.com\/hydro-plus-electrolyte-drink-mix\">SiS HYDRO+<\/a>) during training \u2013 never leave it for race day!<\/li>\n\n\n\n<li><strong>Be Adaptable:<\/strong> Remember to adjust your plan based on the weather (heat and humidity), how long you\u2019re exercising, and whether you\u2019re a particularly &#8220;salty sweater.&#8221;<\/li>\n<\/ol>\n\n\n\n<p><strong>Ready to dial in your hydration and feel the difference?<\/strong> Grab your <a href=\"https:\/\/www.scienceinsport.com\/hydro-plus-electrolyte-drink-mix\"><strong>SiS HYDRO+<\/strong><\/a> supply, perform that 60-minute sweat test, and start building your personalised plan.&nbsp;<\/p>\n\n\n\n<p class=\"has-medium-font-size\"><strong>Key Takeaways: Hydrate Smarter, Perform Better<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Small Deficits, Big Impact:<\/strong> Losing just <strong>2% of your body weight<\/strong> through sweat can significantly slow you down. But remember, overdoing it with plain water can also be detrimental.<\/li>\n\n\n\n<li><strong>The Winning Formula:<\/strong> Aim to replace <strong>50\u201375% of your sweat losses<\/strong> during exercise, ensuring you get around <strong>350 mg of sodium per 500 ml<\/strong> of fluid.<\/li>\n\n\n\n<li><strong>Your Smart Solution:<\/strong><a href=\"https:\/\/www.scienceinsport.com\/hydro-plus-electrolyte-drink-mix\"> <strong>SiS HYDRO+<\/strong><\/a> is expertly formulated to deliver those crucial electrolytes with virtually no calories, making it the perfect partner for your gels and food.&nbsp;<\/li>\n<\/ul>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group written_by_group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><div class=\"author_written_by\">\n                                    <div class='written_by_title'>Written By<\/div>\n                                    <div class='written_content'>\n                                        <div class='written_by_avavtar'><img data-del=\"avatar\" src='https:\/\/www.scienceinsport.com\/sports-nutrition\/wp-content\/uploads\/sites\/3\/2025\/04\/Headshot-1-1-2-150x150.jpg' class='avatar pp-user-avatar avatar-50 photo ' height='50' width='50'\/><span class='written_by_name_mobile'>Jonah Rosner<\/span><\/div>\n                                        <div class='written_by_description'>\n                                         <div class='written_by_name'>Jonah Rosner<\/div>\n                                         <div class='written_by_guest'><\/div>\n                                          <div class='written_by_introduction'>Jonah is an applied sport scientist, strength and running coach based in Brooklyn,   NY. Jonah spent the past 10 years working with athletes and teams from all major American Professional Team sports. Most recently, Jonah was the applied sport science coordinator for the Houston Texans in the NFL. At 25 he was one of the youngest sport scientist in NFL history. <\/div>\n                                          <div class='written_by_link'>\n                                            <a href='https:\/\/www.scienceinsport.com\/sports-nutrition\/author\/jonahroser\/'>More articles by author<\/a>\n                                          <\/div>\n                                        <\/div>\n                                      <\/div>\n                                    <\/div>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Ever hit a wall on a long run? We&#8217;ve created your 3-Step Plan to Peak Performance.<\/p>\n","protected":false},"author":466,"featured_media":19399,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[452],"tags":[108,156],"class_list":["post-19396","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sport","tag-hydration","tag-hydro"],"acf":{"subtitle":"","product_skus":"","post_banner":false,"duration_type":"time","duration_time":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Hydrate smarter, perform better -<\/title>\n<meta name=\"description\" content=\"Ever hit a wall on a long run? 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