www.upworthy.com
People share things they didn’t realize until they lost weight, and it’s eye-opening
In an era when both obesity and “heroin chic” trends are growing concerns, weight loss can be a touchy topic. Society’s ever-changing views on body size are worthy of their own discussion, of course. But as the link between obesity and health risks has been well-established, the reality is that many adults want and need to lose weight for health reasons.
People who are looking to lose weight know to expect certain things—an increased focus on nutrition and exercise, for example. Some weight loss journeys might include surgery or GLP-1 medications, which have exploded in recent years. But some parts of the journey can still take people by surprise, especially as they get closer to their goal.
So when someone asked on Reddit “What is something you didn’t realize until you lost weight?” thousands of responses poured in. While everyone’s experience is unique, the common themes are eye-opening.
What is something you didn’t realize until you lost weight? byu/Cultural-Profile-527 inAskReddit
Temperature tolerance changes
Many people shared that they felt colder after losing weight. Body fat acts as an insulator, so losing it can make people more sensitive to cold temperatures. Changes in metabolism and hormones that accompany weight loss can also temporarily make you feel cold. However, nutritional deficiencies can cause similar symptoms, so it may be worth checking with your doctor if it becomes a concern.
“How well the fat insulates heat. On the positive note, I can tolerate hot and humid weather much better now. But I have to wear a lot of extra layers when it is cold, and I don’t enjoy swimming in the sea anymore even in height of summer, because it is too cold all the time (I am in the UK).”
“Oh man, so true, I’m still a big person but much smaller than I was and in winter I’m shaking like a Chihuahua, even with a lot of layers on.”
wanna know the most ANNOYING side effect of losing weight? i’m cold ALL the time. 72 degrees has me in a hoodie and i don’t like that — Dustin Dailey (@ThreeDailey) February 28, 2024
“Absolutely correct! I get frustrated at how easily I get cold now. It was not something I anticipated.”
“Same, I absolutely cannot tolerate the cold anymore. But warm weather is much easier to cope with, so it’s not a bad tradeoff.”
“I lost 6 stone last year and this winter has been COLD but I’m looking forward to not being a gross sweaty mess this summer!”
Armpits are pits
Armpits are just arm pits, right? Not necessarily. When extra fat in that area fills in the hollow, it doesn’t appear as much of a “pit.” Losing weight revealed the actual pit feature for some folks.
“That your armpits are actually pits, they’re not just called that. When you’re fat, you just have underarms.”
“Just got here. Asked my wife why she was staring at me oddly, she said my pits were hollow.”
@amber_c_fitness Replying to @Julie omg yes! #weightlossmotivation #beforeandafter #weightlossresults #weightlosstransformation #weightloss ♬ What Was I Made For? [From The Motion Picture “Barbie”] – Billie Eilish
“From my all time heaviest I am down 90 pounds to 279 as of this morning. For about a month I’ve really been feeling the pits come in…lol. The joy this brought was very surprising.”
“Fair warning: now I have pits I absolutely cannot figure out the right angles to shave at anymore lmao. A blessing and a curse. A blurse.”
“Yes!! I have to change how I shaved them.”
Feeling your bones
When you become accustomed to having a layer of cushion around your body, losing it can be disconcerting—especially when you start feeling hard, knobby things that you might mistake for growths of some kind.
“I fairly recently lost 50 lbs. Imagine my surprise when I scheduled a doctors appointment thinking there was some sort of tumor in my chest only for them to tell me I have bones.”
“I’ve lost 50kg. I panicked when I felt my sternum.”
“Yes! I felt this with my chest. I thought I had some kind of chest cancer lump. This is the part of weight loss I did not expect.”
losing weight and start feeling bones you’ve never felt before— ari (@cherubineom) February 12, 2026
“I was very muscular in high school. Then gained a bunch of weight in college. Then lost the weight (and a fair bit of muscle) a few years after that. One day I thought I felt a lump in my boob and panicked. Turns out it was a rib that had been previously covered in muscle or fat.”
“I’m so glad I’m not the only one I once went to the doctor thinking I had breast cancer. The doctor asked me if I had recently lost a lot of weight, then explained I was feeling my ribs.”
“When I lost 100 lbs and all of a sudden I could feel like wtf there’s actually a spooky skeleton inside me I would just sit there grabbing bones in bewilderment and mild horror.”
People treat you differently
Perhaps the hardest realization people shared was how being overweight had made them invisible to so many. A lot of commenters said people became nicer to them after they lost weight. That’s food for thought for all of us.
“How much nicer people are. As someone who’s lost and gained and lost again, it’s something I’ve noticed. People aren’t noticeably rude or dismissive to me as a bigger person, it’s more like they just don’t really acknowledge you. The world is just nicer when you’re smaller.”
“I’m male. I lost 140 lb and got fit in my mid-40s after living all my late teen and adult years being 300+. That was almost a decade ago. I can honestly say that everything in this thread has been, to some degree, true for me as well, but the most startling has been the way people react to me. It’s unbelievable. Male or female, stranger or acquaintance or friend, passing or casual or business, I’m treated differently. It’s like stepping into another reality and also makes me sad for all those years. Sure, I was fat, but man, I was treated like a subspecies.”
“Yes. I didn’t even realize how much being a fat woman over 40 negatively impacted me professionally until I lost 70 pounds right after Covid. My income more than doubled within a year. It has now nearly tripled. Is it partly because of increased confidence on my part? Probably. Does that explain it entirely? Probably not.”
“My least favorite experience with significant weight loss was experiencing ‘pretty privilege’ for the first time, realizing how mean people had been all my life, and why.”
“I’ve been losing weight and exercising regularly, and suddenly women are interested in me again. I knew logically that humans have a general preference for people of a healthy weight, but I feel like I’ve crossed some threshold of no longer being invisible to them. Wild.”
“I was telling my dad how it blew my mind how differently I was treated and he almost couldn’t believe the difference I was describing.”
Having energy
Carrying excess weight is physically demanding and requires extra energy for everyday activities. Obesity and sleep problems are also linked, often leading to fatigue. Many people found that their exhaustion eased and that they felt much more energetic after losing weight.
“That being tired all the time isn’t normal and I have a lot more energy to get things done than I thought.”
Losing weight is never fun. But life is so much better after you lost it, because it improves your health, increases your energy levels, and makes you look, feel and perform better.— P.D. Mangan Health & Freedom Maximalist (@Mangan150) September 9, 2025
“When people ask me what I feel like after losing 120lbs, the best explanation I can come up with is that I didn’t realize how sick and miserable I felt all the time until I didn’t feel sick and miserable all the time.
The energy, the aches, the poor sleep, the brain fog…i frog boiled myself into that being my new normal, and now it’s all gone and I can’t believe that’s how I lived for so many years.”
“It’s crazy how many people think constant exhaustion is just ‘normal life’ until they finally fix whatever’s causing it. Feels like getting a whole different version of your day back.”
“It’s crazy how easy it is to assume that’s just your normal baseline. Then you lose weight and you find that you’ve been running on hard mode the entire time. And after losing weight I felt like I had superpowers…”
These revelations are a good reminder of how much of a difference focusing on health can make in our own lives—and how much kindness can make a difference for others.
The post People share things they didn’t realize until they lost weight, and it’s eye-opening appeared first on Upworthy.
New Posts (Home)
ChatBox
Popular Posts 
Game Zone
Top PodCasts
