What exactly is happening to our bodies when we "look rough"?

I thought about posting this in the Health section, but I figured there might be more enthusiasts here who actually study the science and are willing to answer questions.
So, it’s not some standard cosmetic issue, but rather looking rough because of a bad lifestyle, stress, and things like that.
The usual symptoms: heavy dark circles, pale or grayish skin—plus other issues—dull hair and eyes, cellulite, and just looking exhausted or older than I am.
I guess I want someone to explain what's actually happening inside the body when we live like this. For instance, how does a poor diet lead to those dark circles under the eyes? What happens to the liver, kidneys, etc.? And hormones? How much does exercise actually help with all of this?
To be honest, I've had a pretty stressful year (and the one before wasn't exactly great either🙄), so I didn't have the time, energy, or mental capacity to focus on nutrition or working out. I ate way too many sweets and carbs, drank far too much coffee and Coke, skipped my veggies, and almost completely ignored fruit. I barely exercised, and eventually, the insomnia finished me off. Now, I'm dealing with everything I mentioned, plus this constant, draining feeling of exhaustion and zero energy.
Honestly, the fatigue is what bothers me most. How do I stop feeling—and looking—so "wasted"?
I'm looking for advice. What's the fastest way to "reset" and get moving again? How would you even start? What kind of foods should I be putting on my plate first?😁
I've seen in other threads that some people here know quite a bit about biology and physiology, so... go ahead.😉

For heaven's sake, why make things so complicated? Just pick something up—start moving, start burning some calories, get a good sweat going, build some muscle mass, and boost that basal metabolic rate in the process. It really isn't that deep.

People just don't seem to grasp that movement—running, jumping, swimming—is actually part of our nature. Nowadays, when you see someone out for a jog, people look at them like they’ve completely lost their minds. Even women struggle to imagine themselves running; there’s just no culture of physical activity anymore. Honestly, if a PE teacher tried to get kids to run or jump or climb a rope in an American school today, they’d probably get kicked out because the students wouldn't even believe that's what they were actually supposed to be doing.😲

Staying active and eating right is essential. Humans were built to be on the move, not stuck sitting still all day. Back in the day, people were physically active by necessity and ate whatever they could grow or harvest from the land, so nutrition wasn't even a conscious decision. Nowadays, we spend our lives hunched over desks in office buildings, snacking on highly processed junk, which means we actually have to make a conscious effort to exercise and watch what we put in our bodies.
Regular workouts boost your energy levels and essentially train your body to operate more efficiently. Meanwhile, fueling up with nutrient-dense foods gives your system everything it needs to function properly, and honestly, that health eventually shows on the outside too. It’s really not rocket science—like Jerry Howard said: just work out and eat well!

Jerry Howard said:for heaven's sake, why make it so complicated? just pick something up, burn some calories, sweat, build some muscle, boost your metabolism or whatever.

I guess people just don't get that moving—running, jumping, swimming—is what we're built for. Nowadays, if you see someone out for a jog, they look at you like you've lost your mind. Women can barely imagine themselves running. There’s just no culture of being active anymore. It’s like in gym class, kids would probably get kicked out because their peers wouldn't believe they were actually supposed to be running laps or climbing ropes.😲

I suppose I agree. I've never understood the type who waits for a city bus just to go one block when they could just walk. It's wild how unthinkable that seems to them.😲

Paul Baker29 said:Just work out and eat clean. Humans were built to move, not sit around all day. Back then, people did manual labor and ate what they grew, so it wasn't even a choice. Now, everyone's stuck in cubicles eating processed junk, so you actually have to try and exercise just to stay level.
Consistent training boosts your energy and teaches your body how to run more efficiently. Eating nutrient-dense food gives you what you need to function properly, which eventually shows in how you look. It isn't rocket science—like Jerry Howard said, just move and eat right.

I figured we should have a thread about that "depleted" look. We have endless discussions about cellulite or weight, but nothing on this. It’s everywhere. You just look at people out on the street in any major US city. Almost everyone looks 🙂

Look, let’s not overthink this—honestly, whatever you're worried about happening inside your body, you've probably already guessed it right.
You're basically fueling yourself with empty calories that offer zero nutritional bang for your buck. When that happens, everything goes haywire: your circulation hits a wall, your metabolism drags its feet, toxins start piling up, and your muscles are just sitting there reacting to a super sedentary lifestyle.
If you ask me, step one should be getting a full KCC checkup. There's a huge chance your iron and HDL are running low while your blood sugar and LDL are spiking.

Step two? Get that diet on track and start moving! I’d suggest starting with some brisk walking out in nature—if you’ve got a big park or a nice trail nearby, that's perfect. It’s not just great for your physical health; it’s a total lifesaver for decompressing all that built-up stress.

You've got this! 🙂

Paul Baker29 said:Just hit the gym and eat clean. Humans aren't designed to sit around all day; we were built to stay active.

Well, there you have it—the absolute pinnacle of wisdom right there.
Movement.
But let's be honest, people are just lazy, sluggish, and always seem to have a million excuses lined up. We all have responsibilities, don't we? I personally deal with a hundred different things every single day, yet I still maintain that you can always find time for some exercise, provided you actually want to.

Moving around gets the blood pumping, helps process everything we eat, and keeps the lungs working properly through that essential exchange of gases.

Thanks for the input.
As for how I look, the dark circles under my eyes are the biggest issue. I don’t even touch alcohol, yet I have bags under my eyes like a heavy drinker. I recall reading somewhere that high sugar intake might affect the body similarly to alcohol—not in terms of getting drunk, but maybe something regarding the liver or whatever. That’s why I was looking for a real explanation behind it.
What else could be causing this?
It isn't insomnia; I've been taking sleep aids for a while now and I finally sleep better, but the circles haven't budged. 🤷

Whatever, give this a shot instead
link

nimblegull23 said:Man, just give this a shot instead
link

That's intense🤣

Look, there’s no deep philosophy or hidden wisdom here. You put garbage in, and you become... well, let's just say you end up feeling like garbage 🙂

I’ve been there myself. There was a time when I nearly worked myself into an early grave, especially with how I was living—terrible diet (both in terms of what I was eating and how much), way too much soda, endless coffee, and spending basically my entire life stuck in some stuffy, air-conditioned office

My advice? Just start moving, but take it slow. Don't go rushing into some intense, suffocating CrossFit box where you'll just burn out after five minutes. Start with something low-key—maybe some hiking, some light stretching, or beginner Pilates. And honestly, try to view it as your way to blow off steam and decompress

As for the food side of things... I don't know if you're much of a cook or not, but at the very least, you need to establish three solid meals a day and actually eat some healthy snacks. And I mean *healthy*—we aren't talking about grabbing a Snickers or a bag of chips on the run

And please, just try to enjoy the little things every single day

👍

Alex Barnes8 said:Thanks for all the input.
As far as my appearance goes, those dark circles under my eyes are what bother me most. I don't touch alcohol, yet I have bags under my eyes like a heavy drinker. I remember reading somewhere that sugar—at least in large amounts—hits your system much like alcohol does. Not that you get drunk on it, obviously, but maybe it affects the liver or something similar. That’s why I was looking for a real explanation behind it.
What else could be causing this?
It isn't insomnia, because I've been taking sleep aids for a while now and I'm finally sleeping better, but the dark circles just won't budge.🤷

Have you actually seen a doctor? Any actual findings?

Alex Barnes8 said:I initially thought about posting this in the Health section, but it seems like the enthusiasts here are more likely to actually read up on things, study the science, and provide meaningful answers to specific questions.
To be clear, I’m not talking about structural ugliness; I mean that exhausted, haggard look that comes from a lifestyle of stress and poor habits.
The usual suspects: heavy dark circles under the eyes, pale or grayish skin (plus various other dermatological issues), dull hair and eyes, cellulite, and looking much older and more depleted than I actually am.
I want someone to explain the actual mechanics of what happens inside the body when we live like this. For instance, how does a bad diet lead to those massive under-eye bags? What is the physiological impact on the liver, kidneys, and so on? Where do hormones fit into this equation? And what exactly is the biological payoff of regular exercise in reversing this?
The reality is that I’ve had an incredibly stressful year (and honestly, the one before wasn't much better🙄), and I simply didn't have the time, the willpower, or the mental bandwidth to prioritize nutrition or exercise. My diet consisted of way too many sweets and processed carbs, I lived on coffee and Coke, I constantly skipped my greens, almost completely ignored fruit, barely moved, and eventually, insomnia finished me off. The result is everything I just listed, plus a crushing sense of exhaustion and total depletion of energy.
That last part is what’s killing me most. How do I stop feeling—and frankly, looking—so completely "wasted"?
I need advice. What is the fastest way to "reset" and get moving again? If you were in my shoes, where would you start? Which specific foods should be the first thing hitting my plate? 😁
I’ve noticed on other threads that there are people here who actually understand biology and physiology, so go ahead—break it down for me. 😉

Take this question to your primary care physician.
Cortisol is the main culprit here. It spikes when the body is under constant stress.

slydriver52 said:Maybe just ask a primary care physician.
Cortisol is usually the main culprit here. It spikes whenever the body deals with stress.

Could you elaborate on that a bit?🙂 Please. 😁
I'm mostly worried my doctor would just stare at me blankly if I asked for a lecture on cortisol. They seem so guarded; sometimes even a simple "yes" or "no" feels like too much to ask.🙄

Alex Barnes8 said:I’m with you there. I have never quite understood the logic behind people waiting for the subway just to travel a single stop when they could easily walk—and honestly, it’s wild how many people find walking to be an unthinkable concept!😲

Personally, though—and I do wonder this quite often—what is even the point of taking the train if you're healthy enough to just hop on a bike? 🤷

Alex Barnes8 said:Thanks for all the replies.
Regarding my appearance, the dark circles under my eyes are what bother me most. I don't drink alcohol at all, yet I have bags under my eyes like a heavy drinker. I once read in a book that sugar (specifically high amounts of it) can have an effect on the body similar to alcohol. Not in the sense of making you feel drunk, but perhaps having a similar impact on the liver or something along those lines. That’s why I was interested in hearing the scientific reasoning behind it.
What else could be contributing to these dark circles?
It isn't insomnia, as I've been taking sleep aids for a while now and I am finally sleeping better, but the circles haven't gone away.🤷>

When it comes to those dark circles, they likely appeared because of your poor diet. Specifically, if your daily salt intake (over a period of time) is too high—exceeding the recommended 5-6 grams a day—it causes significant water retention in your body, which shows up right under your eyes. And, as you mentioned, you were struggling with sleep, which is another major culprit. It is difficult to pinpoint the exact cause when your lifestyle is currently out of balance, but I would wager it is a combination of sodium from fast food, general poor nutrition, and lack of rest.

As for hormones, cortisol is the primary one released when the body is under stress. It essentially "eats" away at your muscle mass and triggers various negative processes that disrupt your homeostasis (your body's attempt to maintain internal stability). You can find plenty of information on this by searching "cortisol" online; you'll get a mountain of results.

Furthermore, you mentioned that you haven't been eating much fruit or vegetables, which means you aren't getting enough micronutrients (vitamins and minerals). These are responsible for everything from repairing skin, hair, and nail cells to flushing toxins out of your system and maintaining a healthy metabolism for fats, carbs, and proteins.

You probably haven't been drinking enough fluids either. Since the human body is about 70% water, hydration is the essential medium through which all biological functions occur. You've likely heard of electrolytes; they are vital for how the different parts of your body communicate with one another.

Between that kind of diet, inactivity, and stress, you've thrown your whole system out of whack. It is time to make a change, because believe me, this is just the beginning. If you continue down this path, you're going to face much more serious health issues, as this lifestyle is perfect breeding ground for illness.

So, here is the plan:
1. Start eating healthier (fruits, vegetables, plenty of water and tea, chicken, turkey, lean beef, fish, eggs, dairy, whole grains, rice, and nuts).

2. Get moving. To start, try to spend at least 2 or 3 hours outdoors in nature. Take a friend for a walk, go for a stroll, ride a bike, or just head to a local park (if you're near a big city, maybe hit up Central Park or a nice hiking trail). Generally speaking, outdoor activity helps reduce stress significantly.

3. Be patient. It will likely take anywhere from six months to a year before you see a real shift toward a normal state where things visibly improve and you actually start feeling better.

4. If you smoke or drink, stop. Your body is essentially in a coma right now, and those habits only make it worse.

5. Cut back on highly processed foods as much as possible (bakery items, McDonald's, Burger King, kebabs, chips, and general junk food).

6. Try eating dark chocolate with high cocoa content (70% or higher).

7. Search for "antioxidants" online and find foods rich in them. Antioxidants are responsible for neutralizing free radicals and removing toxins from your system!

Here is one more thing those anti-milk crusaders just refuse to acknowledge: milk actually binds free radicals—especially lead—within the body, so... you really ought to be drinking it!

Paul Baker29 said:Here’s another thing those anti-milk crusaders refuse to acknowledge; milk actually binds free radicals, especially lead, within the body, so... you really ought to be drinking it!

Not her again with the whole milk debate 🤦

Sophia Taylor47 said:It’s not exactly rocket science or deep philosophy. You eat junk and you become... well, junk (if you catch my drift 🙂).

I think I nearly burnt myself out once too, between work and everything else—bad diet zone, too much soda, constant caffeine, being stuck in air-conditioned offices all day...

Maybe just start exercising, slowly. Don't jump straight into some intense gym where you'll quit after five minutes. Maybe try something easier, like walking outside, light stretching, or beginner Pilates, and just view it as a way to vent stress.

As for food... I don't know how much you cook, but at least try eating three main meals and some healthy snacks—not Snickers or chips.

And I guess you should just try to enjoy the small things every day.

👍

Thanks for this. That first part is decent motivation, I suppose, and it's a good reminder about the mind-body connection. I tend to believe in that.👍

Richard Cook2 said:Regarding those dark circles under your eyes, they probably showed up because of poor nutrition. High sodium intake—exceeding the recommended 5-6g daily—causes water retention, which leads to puffiness and eye bags. Plus, you mentioned you aren't sleeping well, which is another likely culprit. It’s hard to pinpoint the exact cause given how rough your routine is, but I’d bet on fast food, a bad diet zone, and lack of sleep.

As for hormones, cortisol is what spikes when you're stressed. It basically eats away at muscle tissue and messes with your homeostasis—the body's attempt to stay balanced. You can find plenty of info on Google if you just search for cortisol.

Also, since you said you haven't been eating fruits or vegetables, you're missing out on the micronutrients—vitamins and minerals—needed for everything from skin and hair repair to flushing out toxins and managing metabolism for fats, carbs, and proteins.

You probably aren't drinking enough water either. The human body is about 70% water, and hydration is the primary medium for almost every bodily function and cell communication. You've likely heard of electrolytes.

Between the diet, the inactivity, and the stress, your whole system is out of whack. You really need to change things now; if you don't, this is just the beginning. This lifestyle is basically an open invitation for serious health issues down the road.

So:
1. Start eating better (fruit, veggies, water, tea, chicken, turkey, beef, fish, eggs, dairy, whole grains, rice, nuts).

2. Get moving. At least start by spending 2-3 hours outdoors. Go for a walk with a friend, go rollerblading, ride a bike, or hit a local park like Central Park or somewhere similar. Being in nature helps lower stress significantly.

3. Be patient. It’ll probably take six months to a year before you see real improvements and actually feel better.

4. If you smoke or drink—stop. Your body is already struggling, and that just makes it worse.

5. Cut back on processed foods as much as possible (bakery items, McDonald's, Burger King, kebabs, chips, etc.).

6. Try eating dark chocolate with high cocoa content (70% or higher).

7. Look up "antioxidants" and find foods rich in them. They help clear out free radicals and toxins.

That part about cortisol is interesting. It’s actual proof that emotions impact physical health. And what you said about cortisol "eating muscle"... I struggle with having very weak muscle tone, and honestly, building muscle is harder for me than losing weight. I have a few extra pounds, but that's not the main issue. My lack of muscle tone is the bigger problem.
I don't drink or smoke, though. I guess that's something.😁