What Happens if I Fast for 3 Days? The Truth You Need to Know

Honestly, if you’re considering fasting for 3 days, I get it. The idea of resetting your body, losing weight, or feeling more "clear" is tempting. But trust me, it’s not all sunshine and rainbows. I’ve tried it, and there’s a lot more to the story than what the internet’s telling you. So, let’s dive into what really happens when you fast for 3 days—physically, mentally, and emotionally.

Day 1: The Shock to Your System

Alright, so, you’re ready to give it a go, right? First day—you're probably feeling excited. I mean, I sure was. But I quickly realized that my body was not too thrilled with the idea. Hunger pangs hit hard, and it wasn’t just about missing food. I was dealing with this weird, low energy feeling. Like, I wasn’t starving, but I was definitely not myself.

Here’s the science bit: When you stop eating, your body starts burning through stored glycogen (that’s your body’s carb reserve). After about 12-24 hours, though, those reserves run out. Then, your body enters a state called ketosis, where it starts burning fat for fuel instead of carbs. This is when you’ll start noticing that your energy dips but then comes back in waves.

For me, on Day 1, I felt like a zombie. I was shaky, had a headache (which I later realized was probably from dehydration), and it was hard to focus. I honestly almost quit after 18 hours. But I stuck with it, mostly because a friend of mine (let’s call him Tom) was on his own fasting journey and swore it got easier after Day 2.

Day 2: Ketosis Kicks In

Okay, so here’s the moment of truth: Day 2. This is when things get interesting. Your body is fully in ketosis now, burning fat for energy. Sounds cool, right? And, it does have its perks. You start to feel a little lighter, your mind is sharper, and there’s this sense of clarity that kicks in. I don’t know how to explain it, but I actually felt good at certain points.

But, here’s the catch: you also feel irritable as heck. Seriously. Like, you can’t stand people. Or, I couldn’t anyway. You’re tired, hungry, and let’s not even talk about the emotional rollercoaster. Your brain keeps thinking about food. I remember sitting at my desk, thinking, "Why on earth did I sign up for this again?"

I had a conversation with Tom that day. He was in his 2nd day, and he warned me, “Dude, it’s gonna suck, but hang in there. Day 3 is where it gets crazy.” He wasn’t wrong, but I didn’t know what "crazy" meant at that point.

Day 3: Mental Clarity...But Can You Last?

Well, Day 3 arrived, and I’ll admit, it was bizarre. First off, you feel like you’ve crossed a weird threshold where hunger isn’t such a big deal anymore. You’re kind of... detached. Your body is used to the fasting routine, and it’s now in full-on fat-burning mode. The mental clarity is real, but you’re also more prone to mood swings.

I felt like I could concentrate better, my thoughts were sharper, but at the same time, I had these moments where I was just done. Every thought led to food, and the only thing I could focus on was imagining what I’d eat after I broke my fast. A cheeseburger, maybe? Or some pasta?

Physically, though, you might start noticing some signs your body isn’t super happy with you. You’ll be weak, and if you’re not hydrating properly, you’ll feel dizzy. I was so thirsty by the end of Day 3, I was about to drink a whole gallon of water just to feel “normal” again. So, pro tip: hydrate, hydrate, hydrate.

The Aftermath: What Happens When You Break Your Fast?

Okay, so you’ve fasted for 3 days. Now what? Breaking your fast is just as important as the fast itself. After 3 days of fasting, you don’t want to dive straight into a greasy pizza or massive meal. Your stomach’s gonna be pretty sensitive, and if you eat too much too quickly, you’ll feel miserable.

When I broke my fast, I went with a small, simple meal—some bone broth, a boiled egg, and a piece of avocado. And, I kid you not, I’ve never tasted food so good in my life. But it wasn’t just about the taste. Physically, my stomach was a little shocked. It took a while to get back to eating normally.

Here’s the thing though: After my 3-day fast, I noticed that my cravings for junk food dropped significantly. I had more control over what I ate, and I felt more in tune with my body’s needs. But... and this is important... it doesn’t mean I’ll go fasting for 3 days again anytime soon.

The Bottom Line: Should You Try It?

Honestly, fasting for 3 days is not something I’d recommend casually. It’s tough, and there are a lot of side effects you don’t hear about (like the mental fog and irritability). But there are benefits—more energy, improved clarity, and even potential weight loss (though I don’t think I lost as much as some people claim).

Before you try it, make sure you’re healthy, hydrated, and prepared to deal with the emotional and physical challenges that come with it. If you’ve got a medical condition, or if you're not sure, talk to a doctor first.

And, hey, if you do try it—drop me a message. I’d love to hear about your experience. Just be sure to take it slow when you break your fast. Your body will thank you later.

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How Tall Should a 12 Year Old Be? We can only speak to national average heights here in North America, whereby, a 12 year old girl would be between 137 cm to 162 cm tall (4-1/2 to 5-1/3 feet). A 12 year old boy should be between 137 cm to 160 cm tall (4-1/2 to 5-1/4 feet).

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Staying physically active is even more essential from childhood to grow and improve overall health. But taking it up even in adulthood can help you add a few inches to your height. Strength-building exercises, yoga, jumping rope, and biking all can help to increase your flexibility and grow a few inches taller.

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Generally speaking, the average height for 15 year olds girls is 62.9 inches (or 159.7 cm). On the other hand, teen boys at the age of 15 have a much higher average height, which is 67.0 inches (or 170.1 cm).

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Most girls stop growing taller by age 14 or 15. However, after their early teenage growth spurt, boys continue gaining height at a gradual pace until around 18. Note that some kids will stop growing earlier and others may keep growing a year or two more.

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