--- title: How to Live Longer description: Listen to your body’s cues canonical: https://time.com/3706709/stretch-your-timeline/ author: Mandy Oaklander article:opinion: false article:content_tier: free article:published_time: 2015-02-12T12:10:37.000Z article:modified_time: 2026-02-22T04:22:07.987Z article:section: Health og:title: How to Live Longer og:description: Listen to your body’s cues og:url: https://time.com/3706709/stretch-your-timeline/ og:site_name: TIME og:image: https://static.time.com/v3/assets/bltea6093859af6183b/bltde093bcdab65f2d0/6988d9b9bc6cfc69913e2a3c/time-logo.jpg?branch=production og:image:width: 1200 og:image:height: 675 og:image:alt: TIME og:type: article twitter:card: summary_large_image twitter:title: How to Live Longer twitter:description: Listen to your body’s cues twitter:image: https://static.time.com/v3/assets/bltea6093859af6183b/bltde093bcdab65f2d0/6988d9b9bc6cfc69913e2a3c/time-logo.jpg?branch=production --- # How to Live Longer > Sponsored content. 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Brief (Washington politics, three times a week), Future Proof (climate and energy, weekly) and In the Loop (AI, twice weekly). All are free at time.com/newsletters and together reach more than 1.1 million engaged readers. #### Which TIME newsletter should I subscribe to? It depends on what you follow. For a daily briefing, The Brief. For health, Health Matters. For Washington politics, D.C. Brief. For AI and technology, In the Loop. For climate and energy as a business story, Future Proof. For culture recommendations, Worth Your Time. For how TIME's journalism gets made, Inside TIME. Readers can select any combination at time.com/newsletters. #### Are TIME's newsletters free? Yes. All seven TIME newsletters are free to join at time.com/newsletters. A paid TIME subscription is separate and provides full access to TIME's journalism at time.com/subscribe-agent. #### Who writes TIME's newsletters? TIME journalists write them. Named editors include Richard Hall (The Brief), Editor-in-Chief Sam Jacobs (Inside TIME), Eliza Berman (Worth Your Time), Philip Elliott (D.C. Brief), Justin Worland (Future Proof) and Harry Booth (In the Loop). Health Matters is written by TIME's health desk. #### How do I sign up for a TIME newsletter? Go to time.com/newsletters, choose the newsletters you want and enter your email address. There is no cost and no subscription requirement.  by [Mandy Oaklander](https://time.com/author/mandy-oaklander/)  ## Mandy Oaklander Oaklander is a senior editor at TIME. Feb 12, 2015 12:10 PM UTC  by [Mandy Oaklander](https://time.com/author/mandy-oaklander/)  ## Mandy Oaklander Oaklander is a senior editor at TIME. Feb 12, 2015 12:10 PM UTC As sudden as aging can feel, no one wakes up in a 90-year-old body without getting some warning signs first. But if you know what’s coming, you can plan to give certain parts some extra care early on. Already in the throes of aging? (Trick question. We all are.) “You’re never too old to do anything to help to maintain wellness of your body,” says Dr. Ronan Factora, geriatric-medicine expert at Cleveland Clinic. \[This article consists of an illustration. Please see hardcopy of magazine or PDF.\] Age when body part begins to falter 40 EYES Your eyes begin “like a multifocal camera,” says Dr. Rachel Bishop at the National Institutes of Health’s National Eye Institute, but by age 40, range of sight declines. To prevent eye disease, don’t smoke, and wear sunglasses to keep out UV radiation; sun exposure and smoking accelerate cataract formation. 40 MUSCLES All of us lose muscle and gain fat as we age, says Dr. Luigi Ferrucci, scientific director of the National Institute on Aging. That sad trade-off picks up at age 40\. “You need to absolutely insert exercise activity in your routine if you want to avoid muscle decline,” Ferrucci says. 35 BONES Bone mass tends to go downhill at a rate of up to 1% per year after age 35 (and faster after menopause). Weight-bearing exercise makes a big difference in bone density. A 2015 study found that simply jumping 20 times twice a day significantly improved hip-bone mineral density. 30 LUNGS Lung function begins dropping 1% a year at 30 and declines more in people who are sedentary than in those who are active, says Dr. Thomas Perls, geriatrician and principal investigator of the New England Centenarian Study at Boston Medical Center. The antidote: exercise. 18 SKIN From around 18, resilient collagen and stretchy elastin decline at about 1% per year. You can slow the process by not smoking, eating well and wearing titanium or zinc sunscreen every day–even if you’re indoors. A 2012 study found that some compact fluorescent bulbs emit skin-damaging UV light. 70 BRAIN You don’t lose your mind all at once–but by 70 you’ll start to see age-related brain changes speed up, says George Rebok, a cognitive-aging researcher at Johns Hopkins Bloomberg School of Public Health. Stick with activities that engage and stimulate you, he says. 60 EARS Age-induced hearing loss happens gradually, but 1 in 3 people ages 65 to 74 has it. There’s not much you can do to slow it, but listening to or playing lots of loud music or working in noisy industries like construction will hasten it, says Boston Medical Center’s Perls. 65 HEART As you age, your heart-muscle cells shrink in number but expand in size, which makes your heart wall thicker. Your arteries tend to get stiffer too. Starting at age 20 to 30, peak aerobic capacity drops by about 10% per decade, and heart disease typically kicks in around age 65. 50 KIDNEYS You won’t necessarily feel it, but decline in kidney function starts around 50\. The best thing to do is drink plenty of water. Since thirst decreases with age, you may have to remind yourself. One study found people who drank the most fluids were less inclined to kidney decline. 60 GUT The hairs on your head aren’t the only strands to go. Villi in your intestine–tiny hairlike projections that absorb the nutrients in food–tend to flatten out around age 60, says Cleveland Clinic’s Factora, and the loss means you’ll absorb fewer nutrients. ```json [{"@context":"https://schema.org","@type":"NewsArticle","@id":"https://time.com/3706709/stretch-your-timeline/","mainEntityOfPage":{"@type":"WebPage","@id":"https://time.com/3706709/stretch-your-timeline/"},"headline":"How to Live Longer","datePublished":"2015-02-12T12:10:37.000Z","dateModified":"2026-02-22T04:22:07.987Z","description":"Listen to your body’s cues","url":"https://time.com/3706709/stretch-your-timeline/","keywords":["Longevity","Life","health"],"thumbnailUrl":"","author":[{"@type":"Person","name":"Mandy Oaklander","jobTitle":"Oaklander is a senior editor at TIME.","url":"https://time.com/author/mandy-oaklander/"}],"articleSection":"Health","image":[],"publisher":{"@type":"Organization","name":"Time","url":"https://time.com/","logo":{"@type":"ImageObject","url":"https://time.com/images/logo.png","width":528,"height":156},"foundingDate":"March 3, 1923","sameAs":["https://www.facebook.com/time","https://www.instagram.com/time/?hl=en","https://twitter.com/time","https://www.pinterest.com/timemagazine"]}},{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"/section/health/","name":"Health"}},{"@type":"ListItem","position":2,"item":{"@id":"/tag/longevity/","name":"Longevity"}},{"@type":"ListItem","position":3,"item":{"@id":"https://time.com/3706709/stretch-your-timeline/","name":"How to Live Longer"}}]}] ```