Ever get carded at 35? I do. All the time.

Just last week, the cashier at Target looked at me suspiciously when I tried to buy a lottery ticket. I’m 36, but apparently, I look 23. My best friend Marcus has the same “problem.” He’s 43 and regularly gets mistaken for someone in their late twenties.

We used to think it was pure genetics. Then we started comparing notes with other baby-faced friends and noticed something interesting. We all avoided certain habits that most people consider normal.

After diving into the research and talking to dermatologists, nutritionists, and fitness experts, I’ve identified eight common habits that people who look decades younger typically skip.

Ready to discover what they are?

1) They don’t bake in the sun

Remember when having a deep tan was the ultimate summer goal?

Yeah, turns out that’s one of the fastest ways to age yourself. UV exposure accounts for up to 80% of visible facial aging signs. Those who look younger have typically been religious about sun protection since their twenties.

Marcus learned this the hard way. In college, he was obsessed with tanning. By 25, he noticed fine lines around his eyes. He completely changed course, started wearing SPF 50 daily, and now swears his skin actually improved over the following years.

I’ve always been naturally cautious about sun exposure. Not because I was smart about skincare, but because I burn like a lobster after five minutes outside. That apparent weakness turned into my skin’s best defense.

2) They skip the yo-yo dieting cycle

You know those people who are always on some new diet? Keto this month, intermittent fasting the next, then juice cleanses?

That constant weight fluctuation wreaks havoc on your skin’s elasticity. When you gain and lose repeatedly, your skin stretches and contracts like an overused rubber band. Eventually, it stops bouncing back.

The younger-looking folks I know maintain relatively stable weights. They might fluctuate five pounds here or there, but they’re not dropping 30 pounds for summer then gaining it all back by Christmas.

I learned this from reading “The Blue Zones” by Dan Buettner. People in regions with the longest lifespans don’t diet. They just eat consistently moderate amounts of whole foods. Revolutionary, right?

3) They don’t sacrifice sleep for productivity

Remember when pulling all-nighters was a badge of honor?

Those who look younger figured out early that sleep isn’t optional. During sleep, your body produces growth hormone, which helps repair and regenerate cells. Skip it regularly, and you’re essentially fast-forwarding the aging process.

I used to survive on five hours a night during my corporate days. Thought I was being productive. Then I read Matthew Walker’s “Why We Sleep” and realized I was basically poisoning myself. Now I protect my eight hours like they’re sacred.

The difference in my skin, energy, and overall appearance after prioritizing sleep? Night and day. Literally.

4) They avoid smoking like the plague

This one’s obvious, but it bears repeating.

Smoking accelerates aging so dramatically that dermatologists can often spot a smoker just by looking at their skin. It restricts blood flow, depletes vitamin C, and breaks down collagen and elastin.

I’ve never been a smoker, but I had a colleague who quit at 30 after smoking for a decade. Within a year, people started commenting on how much younger and healthier she looked. Her skin literally transformed.

Even occasional social smoking adds up. Those who maintain youthful appearances typically never picked up the habit or quit early and completely.

5) They don’t live on processed foods

What’s the quickest way to look older? Feed your body junk.

Processed foods high in sugar and unhealthy fats trigger inflammation and glycation, where sugar molecules attach to proteins like collagen. The result? Stiff, aged-looking skin.

Marcus and I both discovered this independently. He went whole-food based after reading “In Defense of Food” by Michael Pollan. I made the switch after noticing how bloated and tired I felt after fast food binges.

Now we joke about being those annoying people who read ingredient labels. But when someone guesses you’re fifteen years younger than you are, suddenly being annoying doesn’t seem so bad.

6) They skip the sedentary lifestyle

Here’s what surprised me most in my research: it’s not about being a fitness fanatic.

The people who look youngest aren’t necessarily the ones with six-packs. They’re the ones who move consistently. I go to the gym four times a week, focusing on functional fitness rather than bodybuilding. Nothing extreme.

I also discovered running as mental health management. The stress reduction alone probably knocked five years off my appearance. Chronic stress shows up on your face faster than almost anything else.

Movement increases blood flow, delivers nutrients to skin cells, and helps flush out toxins. Sitting all day does the opposite.

7) They don’t chronically dehydrate themselves

Coffee doesn’t count as water intake. Neither does beer.

I learned this lesson when a dermatologist friend looked at my skin and immediately asked about my water consumption. I was living on coffee and energy drinks. She wasn’t impressed.

Proper hydration keeps skin plump and elastic. Chronic dehydration makes fine lines more visible and gives skin a dull, tired appearance. Those who look younger typically carry water bottles everywhere and actually use them.

Since increasing my water intake to at least 80 ounces daily, multiple people have asked if I’m using new skincare products. Nope. Just water.

8) They avoid excessive alcohol consumption

This was the hardest truth for me to accept.

Alcohol dehydrates you, disrupts sleep, increases inflammation, and dilates blood vessels. Over time, this leads to broken capillaries, puffiness, and accelerated aging.

I’m not saying young-looking people never drink. But they rarely binge. They might have a glass of wine with dinner, not a bottle. They skip the weekend benders that were standard in their twenties.

I’ve noticed that since cutting back to just occasional drinks, my skin looks clearer, my eyes are brighter, and those morning “what happened to my face” moments have disappeared.

Rounding things off

Looking younger isn’t about expensive creams or procedures. It’s about what you don’t do as much as what you do.

These eight habits might seem like common sense, but common sense isn’t always common practice. The people who look decades younger made these choices early and stuck with them.

The best part? It’s never too late to start avoiding these aging accelerators. Your future self will thank you.