Sunday Mar 29, 2026
Leptin Explained: Why You’re Always Hungry & Why Fat Loss Gets Hard
Leptin: The Hormone That Can Make You Hungry… or Not
Hello Midlife Mayhem—
Today we’re talking about something that explains a LOT when it comes to fat loss and appetite:
👉 Leptin
And I’ll start with this—
I recently did a podcast on appetite, and while the information was solid…
I didn’t fully acknowledge the people who are:
👉 Hungry all the time
👉 Fighting cravings constantly
👉 Being told “just eat less” when it feels impossible
This episode fixes that.
🧬 What is Leptin?
Leptin is your body’s appetite regulator, produced by your fat cells.
👉 More fat = more leptin
👉 Less fat = less leptin
And your brain responds like this:
High leptin:
- Eat less
- Burn more
Low leptin:
- Eat more
- Burn less
👉 Perfect in theory… frustrating in real life.
⚖️ Why Fat Loss Gets Hard
As you lose weight:
- Leptin drops
- Your brain senses “less stored energy”
- You get hungrier
- Your metabolism slows
👉 This is why those last pounds feel so difficult.
It’s not you. It’s physiology.
🔁 Leptin Resistance (This Changes Everything)
This is where it really matters.
👉 You have plenty of leptin… but your brain doesn’t recognize it.
So instead of saying:
“we’re fine”
Your brain says:
👉 “we’re starving”
And the result:
- Constant hunger
- Lower calorie burn
- Strong drive to eat
👉 This is not a willpower issue.
💉 Weight Loss Medications (The Fork in the Road)
These medications reduce appetite—and for many people, that’s life-changing.
But then comes a fork:
Path 1:
- No real habit change
- Appetite returns
- Weight comes back
Path 2:
- Better food choices
- More protein
- Strength training
- New identity
👉 Same tool. Completely different outcome.
🔄 Leptin Refeeds
Strategically increasing calories (especially carbs) can signal:
👉 “We’re not starving”
This can help:
- Keep fat loss moving
- Reduce metabolic slowdown
- Improve adherence
And yes—
👉 It needs carbs to work properly.
🧠 The Takeaway
Leptin can:
- Help regulate appetite
- Or completely override it
So if you’ve ever thought:
👉 “Why am I always hungry?”
There may be a real physiological reason.
🎧 Listen to the full episode
If appetite has ever felt like a constant battle—
this one will connect a lot of dots.
📺 Join me LIVE every Sunday
I go live on YouTube every Sunday—
breaking all of this down in real time.
👉 Subscribe here: @joanneleecornish
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