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URLhttps://www.health.harvard.edu/topics/energy-and-fatigue
Last Crawled2026-04-01 12:22:57 (7 days ago)
First Indexed2017-08-20 11:04:37 (8 years ago)
HTTP Status Code200
Meta TitleEnergy and Fatigue - Harvard Health
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Related Articles Pain Fibromyalgia Diseases & Conditions Myalgic encephalomyelitis/chronic fatigue syndrome Diseases & Conditions Are you missing the subtle signs of anemia? Men's Health Increasing energy levels for sex Healthy aging and longevity What is malaise? Diseases & Conditions Is chronic fatigue syndrome all in your brain? Diseases & Conditions What causes increased fatigue? Heart Health Unmasking the varied causes of breathlessness and fatigue Healthy aging and longevity Losing steam? Avoid these energy zappers Healthy aging and longevity When should you worry about fatigue? Energy and Fatigue Illness-related fatigue: More than just feeling tired Diseases & Conditions Fibromyalgia: Exercise helps — here's how to start View All
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![](https://zdbb.net/l/SMQ65iV8SesFwb3ICwHHPk/) [Skip to main content](https://www.health.harvard.edu/topics/energy-and-fatigue#main-content) [Harvard Health Publishing ![Harvard Health Publishing Logo](https://www.health.harvard.edu/img/logos/NEW-HHP_logo_stack4.svg)](https://www.health.harvard.edu/) [Harvard Health Publishing](https://www.health.harvard.edu/) [HarvardHealthOnline+](https://www.health.harvard.edu/hho-plus?utm_source=site&utm_medium=web&utm_campaign=top_button) Search [Customer Service](https://www.health.harvard.edu/customer-service) [Content Licensing](https://www.health.harvard.edu/licensing) [About Us](https://www.health.harvard.edu/about-us) [Log In](https://www.health.harvard.edu/login) Open mobile menu [Free HealthBeat Signup](https://www.health.harvard.edu/healthbeat) Shop [Subscriptions](https://www.health.harvard.edu/subscribe) [Special Health Reports](https://www.health.harvard.edu/special-health-reports) [Online Courses](https://www.harvardhealthonlinelearning.com/catalog) [Pay Subscription Bill](https://www.health.harvard.edu/pay-bill) [Common Conditions](https://www.health.harvard.edu/category/common-conditions) [Staying Healthy](https://www.health.harvard.edu/category/staying-healthy) [Resources](https://www.health.harvard.edu/resources) [Blog](https://www.health.harvard.edu/blog) [COVID-19 Updates](https://www.health.harvard.edu/diseases-and-conditions/coronavirus-resource-center) Close menu [HarvardHealthOnline+](https://www.health.harvard.edu/hho-plus?utm_source=site&utm_medium=web&utm_campaign=mobile_button) ## Main Content - [Common Conditions](https://www.health.harvard.edu/category/common-conditions) - [Staying Healthy](https://www.health.harvard.edu/category/staying-healthy) - [Resources](https://www.health.harvard.edu/resources) - [Blog](https://www.health.harvard.edu/blog) ## Helpful Links - [Customer Service](https://www.health.harvard.edu/customer-service) - [About Us](https://www.health.harvard.edu/about-us) - [Content Licensing](https://www.health.harvard.edu/licensing) - [Free Healthbeat Signup](https://www.health.harvard.edu/healthbeat) - [Subscriptions](https://www.health.harvard.edu/subscribe) - [Special Health Reports](https://www.health.harvard.edu/special-health-reports) - [Online Courses](https://www.harvardhealthonlinelearning.com/) - [Pay Subscription Bill](https://www.health.harvard.edu/pay-bill) Close Recent Articles [![blog image 1](https://domf5oio6qrcr.cloudfront.net/medialibrary/17745/conversions/gettyimages-2226423378-micro.jpg) Understanding food noise - and how to turn down the volume](https://www.health.harvard.edu/diet-and-nutrition/understanding-food-noise-and-how-to-turn-down-the-volume) [![blog image 1](https://domf5oio6qrcr.cloudfront.net/medialibrary/17742/conversions/gettyimages-2238435729-micro.jpg) Remedies for motion sickness: What works?](https://www.health.harvard.edu/preventive-care/remedies-for-motion-sickness-what-works) [![blog image 1](https://domf5oio6qrcr.cloudfront.net/medialibrary/17743/conversions/gettyimages-2206210786-micro.jpg) 4 keys to a heart-healthy diet](https://www.health.harvard.edu/heart-health/4-keys-to-a-heart-healthy-diet) [![blog image 1](https://domf5oio6qrcr.cloudfront.net/medialibrary/17746/conversions/gettyimages-2250179070-micro.jpg) Understanding exercise heart rate zones](https://www.health.harvard.edu/exercise-and-fitness/understanding-exercise-heart-rate-zones) [![blog image 1](https://domf5oio6qrcr.cloudfront.net/medialibrary/17737/conversions/gettyimages-2178967481-micro.jpg) Resistant starch: Can you make the carbs you eat a little healthier?](https://www.health.harvard.edu/diet-and-nutrition/resistant-starch-can-you-make-the-carbs-you-eat-a-little-healthier) [![blog image 1](https://domf5oio6qrcr.cloudfront.net/medialibrary/17739/conversions/gettyimages-1185715816-micro.jpg) Harvard study: A couple of daily cups of coffee or tea linked to lower dementia risk](https://www.health.harvard.edu/diet-and-nutrition/harvard-study-a-couple-of-daily-cups-of-coffee-or-tea-linked-to-lower-dementia-risk) [![blog image 1](https://domf5oio6qrcr.cloudfront.net/medialibrary/17740/conversions/gettyimages-2159385771-micro.jpg) Does everyone benefit from cutting saturated fat in their diet?](https://www.health.harvard.edu/heart-health/does-everyone-benefit-from-cutting-saturated-fat-in-their-diet) [![blog image 1](https://domf5oio6qrcr.cloudfront.net/medialibrary/17724/conversions/gettyimages-2236922220-micro.jpg) How to treat shoulder impingement](https://www.health.harvard.edu/bones-and-joints/how-to-treat-shoulder-impingement) [![blog image 1](https://domf5oio6qrcr.cloudfront.net/medialibrary/17733/conversions/gettyimages-1435062915-micro.jpg) Beyond protein: 6 other nutrients that help prevent muscle loss](https://www.health.harvard.edu/diet-and-nutrition/beyond-protein-6-other-nutrients-that-help-prevent-muscle-loss) [![blog image 1](https://domf5oio6qrcr.cloudfront.net/medialibrary/17715/conversions/gettyimages-1683234126-micro.jpg) Advancements in knee replacement: More precise and personalized](https://www.health.harvard.edu/bones-and-joints/advancements-in-knee-replacement-more-precise-and-personalized) 1 / 10 # Energy and Fatigue ## Related Articles [![\`\${article.title} featured image\`](https://www.health.harvard.edu/topics/article.image%20?%20article.image%20:%20'https://www.health.harvard.edu/img/misc/image-placeholder.svg')](https://www.health.harvard.edu/topics/article.url) [![\`\${article.title} featured image\`](https://www.health.harvard.edu/topics/article.image%20?%20article.image%20:%20'https://www.health.harvard.edu/img/misc/image-placeholder.svg') Pain Fibromyalgia](https://www.health.harvard.edu/topics/article.url) [![\`\${article.title} featured image\`](https://www.health.harvard.edu/topics/article.image%20?%20article.image%20:%20'https://www.health.harvard.edu/img/misc/image-placeholder.svg') Diseases & Conditions Myalgic encephalomyelitis/chronic fatigue syndrome](https://www.health.harvard.edu/topics/article.url) [![\`\${article.title} featured image\`](https://www.health.harvard.edu/topics/article.image%20?%20article.image%20:%20'https://www.health.harvard.edu/img/misc/image-placeholder.svg') Diseases & Conditions Are you missing the subtle signs of anemia?](https://www.health.harvard.edu/topics/article.url) [![\`\${article.title} featured image\`](https://www.health.harvard.edu/topics/article.image%20?%20article.image%20:%20'https://www.health.harvard.edu/img/misc/image-placeholder.svg') Men's Health Increasing energy levels for sex](https://www.health.harvard.edu/topics/article.url) [![\`\${article.title} featured image\`](https://www.health.harvard.edu/topics/article.image%20?%20article.image%20:%20'https://www.health.harvard.edu/img/misc/image-placeholder.svg') Healthy aging and longevity What is malaise?](https://www.health.harvard.edu/topics/article.url) [![\`\${article.title} featured image\`](https://www.health.harvard.edu/topics/article.image%20?%20article.image%20:%20'https://www.health.harvard.edu/img/misc/image-placeholder.svg') Diseases & Conditions Is chronic fatigue syndrome all in your brain?](https://www.health.harvard.edu/topics/article.url) [![\`\${article.title} featured image\`](https://www.health.harvard.edu/topics/article.image%20?%20article.image%20:%20'https://www.health.harvard.edu/img/misc/image-placeholder.svg') Diseases & Conditions What causes increased fatigue?](https://www.health.harvard.edu/topics/article.url) [![\`\${article.title} featured image\`](https://www.health.harvard.edu/topics/article.image%20?%20article.image%20:%20'https://www.health.harvard.edu/img/misc/image-placeholder.svg') Heart Health Unmasking the varied causes of breathlessness and fatigue](https://www.health.harvard.edu/topics/article.url) [![\`\${article.title} featured image\`](https://www.health.harvard.edu/topics/article.image%20?%20article.image%20:%20'https://www.health.harvard.edu/img/misc/image-placeholder.svg') Healthy aging and longevity Losing steam? Avoid these energy zappers](https://www.health.harvard.edu/topics/article.url) [![\`\${article.title} featured image\`](https://www.health.harvard.edu/topics/article.image%20?%20article.image%20:%20'https://www.health.harvard.edu/img/misc/image-placeholder.svg') Healthy aging and longevity When should you worry about fatigue?](https://www.health.harvard.edu/topics/article.url) [![\`\${article.title} featured image\`](https://www.health.harvard.edu/topics/article.image%20?%20article.image%20:%20'https://www.health.harvard.edu/img/misc/image-placeholder.svg') Energy and Fatigue Illness-related fatigue: More than just feeling tired](https://www.health.harvard.edu/topics/article.url) [![\`\${article.title} featured image\`](https://www.health.harvard.edu/topics/article.image%20?%20article.image%20:%20'https://www.health.harvard.edu/img/misc/image-placeholder.svg') Diseases & Conditions Fibromyalgia: Exercise helps — here's how to start](https://www.health.harvard.edu/topics/article.url) [View All](https://www.health.harvard.edu/topics/energy-and-fatigue/all) Recent Articles [![blog image 1](https://domf5oio6qrcr.cloudfront.net/medialibrary/17745/conversions/gettyimages-2226423378-micro.jpg) Understanding food noise - and how to turn down the volume](https://www.health.harvard.edu/diet-and-nutrition/understanding-food-noise-and-how-to-turn-down-the-volume) [![blog image 1](https://domf5oio6qrcr.cloudfront.net/medialibrary/17742/conversions/gettyimages-2238435729-micro.jpg) Remedies for motion sickness: What works?](https://www.health.harvard.edu/preventive-care/remedies-for-motion-sickness-what-works) [![blog image 1](https://domf5oio6qrcr.cloudfront.net/medialibrary/17743/conversions/gettyimages-2206210786-micro.jpg) 4 keys to a heart-healthy diet](https://www.health.harvard.edu/heart-health/4-keys-to-a-heart-healthy-diet) [![blog image 1](https://domf5oio6qrcr.cloudfront.net/medialibrary/17746/conversions/gettyimages-2250179070-micro.jpg) Understanding exercise heart rate zones](https://www.health.harvard.edu/exercise-and-fitness/understanding-exercise-heart-rate-zones) [![blog image 1](https://domf5oio6qrcr.cloudfront.net/medialibrary/17737/conversions/gettyimages-2178967481-micro.jpg) Resistant starch: Can you make the carbs you eat a little healthier?](https://www.health.harvard.edu/diet-and-nutrition/resistant-starch-can-you-make-the-carbs-you-eat-a-little-healthier) [![blog image 1](https://domf5oio6qrcr.cloudfront.net/medialibrary/17739/conversions/gettyimages-1185715816-micro.jpg) Harvard study: A couple of daily cups of coffee or tea linked to lower dementia risk](https://www.health.harvard.edu/diet-and-nutrition/harvard-study-a-couple-of-daily-cups-of-coffee-or-tea-linked-to-lower-dementia-risk) [![blog image 1](https://domf5oio6qrcr.cloudfront.net/medialibrary/17740/conversions/gettyimages-2159385771-micro.jpg) Does everyone benefit from cutting saturated fat in their diet?](https://www.health.harvard.edu/heart-health/does-everyone-benefit-from-cutting-saturated-fat-in-their-diet) [![blog image 1](https://domf5oio6qrcr.cloudfront.net/medialibrary/17724/conversions/gettyimages-2236922220-micro.jpg) How to treat shoulder impingement](https://www.health.harvard.edu/bones-and-joints/how-to-treat-shoulder-impingement) [![blog image 1](https://domf5oio6qrcr.cloudfront.net/medialibrary/17733/conversions/gettyimages-1435062915-micro.jpg) Beyond protein: 6 other nutrients that help prevent muscle loss](https://www.health.harvard.edu/diet-and-nutrition/beyond-protein-6-other-nutrients-that-help-prevent-muscle-loss) [![blog image 1](https://domf5oio6qrcr.cloudfront.net/medialibrary/17715/conversions/gettyimages-1683234126-micro.jpg) Advancements in knee replacement: More precise and personalized](https://www.health.harvard.edu/bones-and-joints/advancements-in-knee-replacement-more-precise-and-personalized) 1 / 10 ## Free Healthbeat Signup Get the latest in health news delivered to your inbox\! 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Readable Markdown
## Related Articles [![Fibromyalgia featured image](https://www.health.harvard.edu/img/misc/image-placeholder.svg) Pain Fibromyalgia](https://www.health.harvard.edu/pain/fibromyalgia-a-to-z) [![Myalgic encephalomyelitis/chronic fatigue syndrome featured image](https://www.health.harvard.edu/img/misc/image-placeholder.svg) Diseases & Conditions Myalgic encephalomyelitis/chronic fatigue syndrome](https://www.health.harvard.edu/diseases-and-conditions/chronic-fatigue-syndrome-a-to-z) [![Are you missing the subtle signs of anemia? featured image](https://domf5oio6qrcr.cloudfront.net/medialibrary/15582/conversions/p4-redbloodcells-wlabel-hl0924-thumb.jpg) Diseases & Conditions Are you missing the subtle signs of anemia?](https://www.health.harvard.edu/diseases-and-conditions/are-you-missing-the-subtle-signs-of-anemia) [![Increasing energy levels for sex featured image](https://domf5oio6qrcr.cloudfront.net/medialibrary/15448/conversions/19dcc40a-261d-4d70-ae15-45422b53399f-thumb.jpg) Men's Health Increasing energy levels for sex](https://www.health.harvard.edu/mens-health/increasing-energy-levels-for-sex) [![What is malaise? featured image](https://domf5oio6qrcr.cloudfront.net/medialibrary/15398/conversions/d015308b-fbc9-4d0b-8099-5d6abf45f4a2-thumb.jpg) Healthy aging and longevity What is malaise?](https://www.health.harvard.edu/healthy-aging-and-longevity/what-is-malaise) [![Is chronic fatigue syndrome all in your brain? featured image](https://domf5oio6qrcr.cloudfront.net/medialibrary/14968/conversions/b15d1dcc-1660-44b3-b8cb-4a03a1cb74f0-thumb.jpg) Diseases & Conditions Is chronic fatigue syndrome all in your brain?](https://www.health.harvard.edu/blog/is-chronic-fatigue-syndrome-all-in-your-brain-202402283020) [![What causes increased fatigue? featured image](https://www.health.harvard.edu/img/misc/image-placeholder.svg) Diseases & Conditions What causes increased fatigue?](https://www.health.harvard.edu/diseases-and-conditions/what-causes-increased-fatigue) [![Unmasking the varied causes of breathlessness and fatigue featured image](https://domf5oio6qrcr.cloudfront.net/medialibrary/12495/conversions/5b83438f-4e92-4377-88ac-fb8bb3827e73-thumb.jpg) Heart Health Unmasking the varied causes of breathlessness and fatigue](https://www.health.harvard.edu/heart-health/unmasking-the-varied-causes-of-breathlessness-and-fatigue) [![Losing steam? Avoid these energy zappers featured image](https://domf5oio6qrcr.cloudfront.net/medialibrary/5516/conversions/l0419a1620725872273-thumb.jpg) Healthy aging and longevity Losing steam? Avoid these energy zappers](https://www.health.harvard.edu/healthy-aging-and-longevity/losing-steam-avoid-these-energy-zappers) [![When should you worry about fatigue? featured image](https://domf5oio6qrcr.cloudfront.net/medialibrary/5497/conversions/n0319b16207258638048-thumb.jpg) Healthy aging and longevity When should you worry about fatigue?](https://www.health.harvard.edu/healthy-aging-and-longevity/when-should-you-worry-about-fatigue) [![Illness-related fatigue: More than just feeling tired featured image](https://domf5oio6qrcr.cloudfront.net/medialibrary/10315/conversions/fatigue-thumb.jpg) Energy and Fatigue Illness-related fatigue: More than just feeling tired](https://www.health.harvard.edu/blog/illness-related-fatigue-more-than-just-feeling-tired-2020102121102) [![Fibromyalgia: Exercise helps — here's how to start featured image](https://domf5oio6qrcr.cloudfront.net/medialibrary/10307/conversions/GettyImages-1262432500-thumb.jpg) Diseases & Conditions Fibromyalgia: Exercise helps — here's how to start](https://www.health.harvard.edu/blog/fibromyalgia-exercise-helps-heres-how-to-start-202010132295) [View All](https://www.health.harvard.edu/topics/energy-and-fatigue/all)
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