"I've Watched Lives Be Destroyed" — People Over 40 Are Sharing The Things About Aging That Young People Never, Ever Realize Will Affect Them As They Age

A few months ago, I wrote an article sharing pieces of advice from BuzzFeed Community members over 40 about things people in their 20s don't yet realize will affect them as they age. It got such a positive response that even more people shared their advice, so in the spirit of positivity, life planning, and preventative self-care, I've decided to share that advice with you.

Two people on a train platform take a selfie in a mirror. One wears sunglasses and an off-shoulder top, the other a cap, holding a camera
Two people on a train platform take a selfie in a mirror. One wears sunglasses and an off-shoulder top, the other a cap, holding a camera
An elderly woman holds up a glass, seated next to an elderly man at a gathering with gifts on the table behind them
An elderly woman holds up a glass, seated next to an elderly man at a gathering with gifts on the table behind them

Oleh_slobodeniuk / Getty Images, Jena Ardell / Getty Images

Fellow young people, listen up: here are some of the most fascinating and crucial things that will be good to keep in mind as we age.

1."Don't let your lack of funds stop you from travelling! My best adventures were with the smallest amount of money."

Two people in winter jackets stand on a cobblestone bridge with statues, overlooking a river and cityscape in the background

2."Do some kind of exercise a few times a week."

Two people biking on a trail through a grassy field with trees in the distance, under a clear sky

3."You're never too old to start something."

Group of marathon runners in action, wearing various athletic gear, participating in a road race

4."I’m 45. I forever feel 25 in my head. I just got into acting and I dare friends in my acting class to guess my age, and most say I look younger than I am."

Four people on stage in a theater setting reading scripts. They are casually dressed, with one sitting on a box, another on the edge of the stage

5."Don’t be surprised if you have to change careers several times."

Two workers in hard hats operate a laptop connected to industrial equipment, focusing on data and wire connections in a technical setting

6."Opening things has become a pain."

Person using a manual can opener to open a can of food, demonstrating the process with both hands
Kinga Krzeminska / Getty Images

7."Use sunscreen even if you tan well and like to tan. Even if you see a dermatologist once a year, get checked."

Close-up of a person's neck with two prominent skin tags, and their hand gently touching the area
Close-up of a person's neck with two prominent skin tags, and their hand gently touching the area
Person applying lotion to their arm
Person applying lotion to their arm

Eyeem Mobile Gmbh / Getty Images, Domepitipat / Getty Images

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"If they balk at your tanning and give you a lecture, find another, preferably one who gets tanned too. Be sure to ask if your skin type varies and where.

I have to use SPF 30 religiously on my face and ears. For the rest of my body, SPF15 light spray suffices.

Read Consumer Reports sunscreen ratings if you have sensitive skin. You might be shocked how poorly many name brands protect your skin, specifically those that are supposedly FDA-regulated."

mpotter1024

8."Do strength training two to three times a week! It doesn’t have to be super heavy lifting, just enough for you to feel challenged and for you to gain some muscle tone."

Woman exercising on a chest press machine in a gym, smiling and focused. She is wearing a long-sleeve athletic top. Fitness equipment surrounds her

9."A cliche truth: If you don’t use it, you lose it. True for so many things related to your body/health."

bougieunicorn22

10."I love that as a 40+ year old woman, I’m invisible to most. I’m a contractor and have been patronized and infantilized my whole career."

The image shows a Home Depot store with garden plants displayed outside under a sunny sky. An American flag is on the roof

11."Stuff is stuff! Skip buying things 'just because.' Honestly, I was obsessed with trying to get my house to look nice and get our kids things they wanted (at the time), but things fade, get broken, and eventually get totally forgotten about!"

A man lifts a child on his shoulders to view sheep in a fenced enclosure at a petting zoo. The child points toward the animals

12."If you return to school, make sure it's a good career, something interesting. I got a degree and got a job, but found I didn't like the new career."

Two scientists in lab coats and goggles focus on experiments with beakers and test tubes in a laboratory setting

13."Best advice I ever got: learn something new each year."

A person uses a hand planer to smooth a wooden beam, creating thin wood shavings
A person uses a hand planer to smooth a wooden beam, creating thin wood shavings
Close-up of hands carefully embroidering colorful patterns on fabric
Close-up of hands carefully embroidering colorful patterns on fabric

Susumu Yoshioka / Getty Images, Rbb / Getty Images

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"Not one fun fact, but learn enough woodworking to build a shelf, or learn cross stitch, or learn everything you can about koalas. It’s not necessarily practical; you don’t necessarily need to profit monetarily from it. The benefit is in stretching yourself."

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14."Most people you know, from acquaintances to friends to family members, are a bit messed up somehow. People become less malleable and more set in their ways as they age."

"If you work on yourself, you will become a lovely person. But you can't control others, so know that some people — including people you care about — are going to wrong you at some point in your life. You should know when to cut ties and when to give people grace."

—Anonymous

15."Be kind to your joints! Exercise regularly! Seriously, get that routine started now! I'm in my 40s and trying to exercise, but my joints won't let me."

Person in athletic wear does a bridge pose on a yoga mat outdoors, using a balance cushion under their lower back

16."You'd be shocked not only at the amount of people who are having affairs, but the amount who abuse drugs."

A bartender pours a cocktail into a martini glass while people in festive attire enjoy a party in the background

17."One day, technology will pass you by. After years of keeping up with all the newest and latest trends, one day, you will realize you are no longer on the cutting edge of tech, and someone younger than you will be explaining something they think is so basic, but you cannot grasp it. The funny thing is that a lot of the time unless it's for work, it doesn't even matter."

Person holding a smartphone showing a menu of ChatGPT model options, with "OpenAI" logo in the background

—Anonymous

Cheng Xin / Getty Images

18."Moderation in all things."

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"I was once addicted to drugs and alcohol. I took abuse to 110%. I then turned to physical fitness to get sober and took that to 110%. After many mobility injuries, fitness had to stop too.

My idea of exercise and being 'in shape' had to change from what it was when I was 27. Had I not taken everything in life to the extreme, who knows what could have been. Now I have to take things as they are. I have to accept myself with my limitations. You will too one day."

—Anonymous

19."I am a devout atheist but I heard the Mormon religion teaches you to stash enough food for two years. I decided to apply this principle to money, and it changed my life."

—Anonymous

20."You have to go to the dentist, and listen to the dentist."

An X-ray image showing a full set of adult teeth and jaw, highlighting the dental structure and alignment

21."Appreciate your friends and be diligent about spending time with them."

Three people laughing and reacting while looking at a smartphone in a lively setting

22."Don't try too hard. For years, we've been taught that only the best of the best of the best excel, but more often than not, there are factors besides performance at play."

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"As a result, young folks spend all of their mental and physical energy trying to be the best at everything.Choose goals that make sense for you. I'm not saying don't try — I'm saying give everything your best shot, but make peace with the fact that you will not be the GOAT at everything you try. You don't have to finish the most reports in the least time, you don't have to make your boss chuckle every time you see them, you don't have to kiss every ass you see, you don't have to drink the most at happy hour, or spend the most money on your home, or be the biggest super fan of your series in order to be a legitimate person."

dandelano

23."The main thing I wish I did when I was in my 20s is to get a job that had a pension. A lot of my friends had jobs where after you put in your 20 years you can retire with a full pension and medical. Now they are enjoying their 50s with a beach-loving life."

A mail carrier in a winter setting, wearing a blue uniform, hat, and gloves, holds letters while walking outside with a mailbag

—Anonymous

Dann Tardif / Getty Images

24."People with a poor attitude towards aging tend to age poorly. It's natural when you're young to feel like life goes by fast and if you don't move fast it will pass you by, but if you live by that philosophy, you will shorten your life."

Woman affectionately leans on elderly man outdoors, both smiling gently while holding hands

"You don't have to use it all up at once, there's plenty later if you take care of your body and keep up with your fitness and hygiene and you can still be a beautiful superhero when those agist haters are shuffling around with their walkers and oxygen tanks."

—Anonymous

Leylaynr / Getty Images

25."Getting a college education is important. It’s never too late to go back, but it’s much easier to do school when you are in your 20s and have the energy for it."

Person studying at a library table, writing with a highlighter. Books and a water bottle are nearby. Other people are working in the background

26."Your height will shrink."

—Anonymous

27."If you always lived an active life, always played sports and worked out, know that as you reach your 40s quality sleep plays a more and more important role in any recovery."

Person lying on a table receiving a physical therapy leg stretch from a therapist

"It's ok to have aches and pains, but at our age, listen to your body, and take a rest day or practice some physiotherapy (like actually do it outside of the physiotherapist's office) until you recover. Uncared for injuries can wreak havoc on your body as it ages."

—Anonymous

David Sacks / Getty Images

28."Your mental health is as important as proper nutrition, hydration and exercise. Find a good group or therapist. Work through your issues whilst you're single and young."

Person in casual attire sits while another takes notes on a clipboard, possibly in a counseling or therapy session

"You'll spend more of your life living in a good headspace versus trying to sort out things on your own. You wouldn't try to be your own dentist; normalize having a good therapist and finding the joy within yourself."

—Anonymous

Natalia Lebedinskaia / Getty Images

29."Create your bucket list in your 20s and try to achieve/experience each thing on it. You’ll have lived with few regrets."

Two people sit on chairs by a pond, facing a large tree and distant crowd, in a serene outdoor setting

—Anonymous

Elena Dijour / Getty Images

30.And finally: "There will be a last time for everything — the last time you play outdoors, the last bedtime story you read to your kids, the last time you play fetch with your dog, but you will not realize it's the last time until it's over and done."

Two young children gardening, one pouring water from a toy watering can onto plants, surrounded by colorful flowers

"Appreciate each moment of your life, because you never know when those ordinary things that we take for granted will stop forever."

—Anonymous

Bgwalker / Getty Images

If you're over 40 and feel like there's an element to aging that 20-somethings just do not see coming, or have any advice or anecdotes you want to share, tell me about it in the comments! Or, if you want to write in but prefer to do so anonymously, you can check out this Google Form. Your answer may be included in an upcoming BuzzFeed article!

Note: Some comments have been edited for length and/or clarity.