Dr Iya Goubareva

17/03/2026

17/03/2026

16/03/2026

😁🫨😡Bowel–Brain Feedback: why mood often changes after you eat

When people talk about mental wellness, the focus is usually on thoughts, stress, or personality.

But many mood shifts actually begin somewhere else.

In the digestive system.

If you pay attention, you’ll notice something interesting:

A lot of mood changes appear 30–180 minutes after eating.

That timing is important, because it often means the cause isn’t psychological.

It’s post-digestive chemistry.

---

The familiar example: being “hangry”

Most people already know this one.

Hangry = hungry + angry.

When blood sugar drops too low, the brain perceives it as a threat and activates stress signals.

The result can look emotional:

- irritability
- impatience
- sudden frustration
- feeling overwhelmed

But it’s actually fuel shortage, not a personality problem.

Now here’s the interesting part:

Similar body-driven effects can also happen after meals, not just before them.

---

What changes in the body after eating

When food is digested, several chemical and physical signals travel from the gut to the brain.

Sometimes those signals shift mood.

For example:

Tryptophan and serotonin

Tryptophan is an amino acid found in many foods (like dairy, meat, eggs, and nuts).
Your brain uses it to produce serotonin, a chemical involved in mood regulation.

After certain meals—especially carb-heavy ones—the balance of amino acids in the blood changes.
This can temporarily alter serotonin levels, which can influence how calm or irritable you feel.

---

Blood sugar swings

Some meals cause a quick rise in blood sugar followed by a sharp drop.

When that drop happens, the brain reacts quickly.

People may feel:

- anxious
- shaky
- mentally foggy
- suddenly stressed

It feels psychological, but the trigger is often blood sugar instability.

---

Histamine signals

Histamine is a natural chemical used by the immune system.

It’s involved in allergies, but it also participates in digestion and inflammation.

Certain foods (especially fermented or aged foods) can increase histamine activity in the body.

When that happens, some people experience:

- restlessness
- tension
- feeling “wired but tired”
- trouble sleeping later

---

Gas and pressure in the gut

The intestine contains pressure sensors that communicate with the brain through the vagus nerve.

When fermentation from gut bacteria creates gas, those pressure signals increase.

Your brain interprets those signals as a change in internal state.

Sometimes that translates into:

- uneasiness
- irritability
- subtle anxiety

Even though the origin is physical pressure in the gut.

---

Why this matters

Many people experience what feels like “random waves of anxiety” during the day.

But when they track it, a pattern appears:

- mood was stable before eating
- mood shifted 1–3 hours later
- no clear psychological trigger occurred

In those cases, the brain didn’t create the feeling first.

The body signaled it, and the mind tried to explain it afterward.

---

A simple experiment

For a few days, just observe timing.

Write down:

- when you ate
- what you ate
- when your mood noticeably changed

You might discover that some emotional shifts are actually digestive events in disguise.

And when the physiology improves, the mood often stabilizes on its own.

Sometimes mental wellness doesn’t start with changing your thoughts.

Sometimes it starts with understanding what your gut is telling your brain.

15/03/2026

🥳What Is Happiness for a Human Being?

Many people dream about the same scenario.

Early retirement.

Enough money to stop working.

Long holidays.

Sitting on a beach doing nothing.

It sounds like the ultimate version of happiness.

But there is a problem: the human organism was not designed for permanent comfort.

Very often, when people finally reach a life with very little challenge—after retirement, sudden wealth, long unemployment, or even extended vacations—they experience something unexpected:
-loss of motivation
-loss of ambition
-boredom
-low mood
-sometimes even depression

Why?

Because happiness is not the same thing as comfort.
The Core Idea
Happiness is the felt state that emerges when a human organism is effectively engaged in meaningful challenges aligned with its capabilities and values.

Let’s break that down.

1. The Human Brain Is Designed for Engagement
Our brain evolved in environments that required constant adaptation:
-solving problems
-building relationships
-learning new skills
-overcoming obstacles
-contributing to the group

The brain’s reward system is built around
effort → progress → reward.

The neurotransmitter dopamine does not reward passive consumption very well.
It mainly rewards progress toward a goal.
That means the brain feels best when it is:
-learning
-improving
-solving
-creating
contributing

When stimulation disappears, motivation systems begin to slow down.

This is why a life of only consumption (eat, sleep, relax, repeat) often becomes psychologically empty.

2. Humans Need Challenge

Challenge does not mean constant stress or suffering.
It means having something meaningful to work on.
Examples:
-mastering a skill
-building a career or project
-raising children
-improving physical health
-creating something valuable
-helping others
-solving real problems

Without challenge, the mind starts searching for stimulation.
When it cannot find meaningful stimulation, boredom and apathy appear.

This is often where alcohol, drugs, and other quick dopamine triggers enter the picture. They provide immediate stimulation with almost no effort, which makes them extremely attractive—but also highly addictive. Many people then fall into a familiar cycle: low stimulation and low mood during the week, followed by intense stimulation on Friday and/or Saturday night, and then the drop again.
Instead of building meaningful engagement, the brain becomes trained to wait for the next artificial spike of excitement..

3. Purpose Matters More Than Pleasure

Pleasure is short-lived.
Purpose is stabilizing.

This is why people who suddenly lose a role often struggle psychologically:
- retirees who lose their professional identity
-parents who devoted years to raising children and suddenly have an empty home
-people who become wealthy and no longer need to work
-any situation where a person suddenly loses structure, responsibility, and direction

Once the structure disappears, the brain asks a simple question:

“What am I here to do?”

Without an answer, motivation fades.

4. Happiness Is Multidimensional

Because humans are complex organisms, happiness does not come from a single source.

It usually requires several systems to function well at the same time:

Physical health
A body that can move, recover, and produce energy.

Mental engagement
Learning, problem solving, curiosity.

Social connection
Belonging, cooperation, relationships.

Contribution
Feeling useful to others or society.

Environment
Living in a space that supports wellbeing.

Purpose
A reason to wake up and invest effort.

When several of these areas are active, the brain experiences stable wellbeing rather than temporary pleasure.

5. The Paradox of Effort

Humans often say they want an easy life.

But the evidence suggests something different.

People complain about effort in the moment.
Yet they derive the deepest satisfaction from effortful activities.
Finishing a difficult project.

Improving health after months of training.

Raising a child.

Building something meaningful.

These experiences create a powerful sense of earned reward.

6. Practical Questions to Reflect On

If happiness comes from meaningful engagement, some useful questions are:

What challenges currently stimulate my mind?

What skills am I actively developing?

Do I contribute to something beyond myself?

Do I have a reason to wake up excited about the day?

Is my body supporting my energy and mental health?

Are my social relationships supportive and active?

If several of these areas feel empty, the solution is usually not more comfort, but more meaningful engagement.

7. A Practical Tool
Instead of asking:

“How can I be happier?”

A better question might be:

“What meaningful challenge am I currently engaged in?”

Very often, happiness appears as a side effect of the answer.

Happiness, then, may not be something we can directly chase.
It may be something that emerges when we live in a way that engages our mind, body, and soul.

8. Discussion.

Do you think meaning must come from struggle, or can it come from creation and curiosity alone?

Is the problem with modern life too much comfort, or lack of meaningful challenges?

Do you see happiness more as:
a by-product of engagement
or a goal people mistakenly chase directly?

What is it that makes you truly happy?

12/03/2026

🍽️ We Are Designed to Fast!

What if the problem isn’t skipping meals—but that we almost never do it?

Modern life makes food constantly available. Three meals a day, snacks in between, late-night eating—it’s become the norm. But biologically, this pattern is very new.
For most of human history, food availability was unpredictable. Hunter-gatherer societies didn’t eat on a fixed schedule; some days food was plentiful, other days it wasn’t. Because of this, the human body evolved systems that function well both when eating and when not eating.
In other words, fasting isn’t a stress our bodies can’t handle—it’s a state they are designed to enter.
When you stop eating for a period of time, the body simply switches fuel sources. Instead of relying on incoming food, it begins using stored energy. During this shift, several useful processes occur:
Improved metabolic flexibility (the ability to switch between glucose and fat for energy)
Better insulin sensitivity
Cellular repair processes such as autophagy
Use of stored fat for fuel
This is why short periods without food are not only safe for healthy individuals—they can be beneficial.
The common belief that “if you don’t eat every few hours your body will shut down” is largely a modern myth. Humans are extremely resilient to temporary food scarcity because that’s the environment we evolved in.
Interestingly, many cultures discovered this long before modern science began studying fasting. Various religious traditions incorporate fasting as a regular practice, including:
Ramadan in Islam
Lent fasting traditions in Christianity
Yom Kippur and other fasts in Judaism
Fasting practices in Buddhism and Hinduism
While these traditions are spiritual in nature, they unintentionally align with biological patterns humans have lived with for thousands of years.
The key point is simple: the body isn’t designed to constantly process food. Periods of eating and periods of not eating are both part of the natural cycle.
Occasional fasting isn’t starvation—it’s a normal metabolic state our physiology is built to handle.

Next time you feel the urge to eat simply because ‘it’s time,’ pause and ask: am I actually hungry, or just following a habit?

Learning to recognize that difference might be one of the simplest ways to reconnect with how our bodies naturally regulate food.

10/03/2026

Master the skills that change lives — enroll in your free human behavior course today: https://nci.university/learnPlease note that the content provided in t...

10/03/2026

Oatmeal - not the best breakfast!!

You’ve been told oatmeal is the “healthy breakfast”… but depending on the person, it may trigger a surprising blood sugar and hunger response. 🥣⚠️In one stu...

09/03/2026

🍳 What is the perfect breakfast?

The confusion exists because recommendations come from very different contexts.

You’ve probably heard completely opposite advice:

• start the day with protein
• eat fruit because it’s light
• avoid fat because digestion is slow in the morning
• never skip breakfast
• skip breakfast for fasting benefits
• make breakfast the biggest meal of the day

With so many conflicting ideas, it sounds like there must be one correct answer.

There isn’t.

But there are patterns that tend to work better than others.

---

First: breakfast is a personal choice

There is no rule that says everyone must eat breakfast.

Some people wake up hungry and feel better eating early.
Others feel mentally clear and energetic for hours before their first meal.

Both responses are normal.

Metabolism, appetite signals, daily routines, and activity levels differ from person to person. What works well for one person may feel uncomfortable for another.

So the real question isn’t whether breakfast is good or bad.

The question is whether eating early actually helps your energy and appetite regulation throughout the day.

---

Why some breakfasts leave you hungry again

Many modern breakfasts are mostly refined carbohydrates:

cereal
toast and jam
pastries
fruit juice

These foods digest quickly and push blood sugar up rapidly. Insulin rises to bring it back down.

When blood sugar falls again, hunger appears.

So the cycle becomes:

eat → blood sugar rise → insulin → drop → hunger again

People often interpret this as “fast metabolism,” but in reality it’s unstable fuel supply.

Fruit can sometimes create a similar effect if eaten by itself. It provides quickly available sugar, which can raise and lower blood sugar relatively fast.

This is also why many traditional cultures ate fruit in the morning: mornings often involved physical labor—working in fields, walking long distances, or other manual work.

Quick sugar was useful fuel when the body was about to be active.

But if the morning involves sitting at a desk for hours, that same quick energy may lead to earlier hunger.

So fruit isn’t wrong—it’s simply context dependent, and it usually works better alongside other foods rather than as the entire meal.

---

Why protein breakfasts behave differently

Protein takes longer to digest and helps stabilize blood sugar.

That’s why a breakfast built around protein tends to:

• keep people full longer
• reduce mid-morning cravings
• provide steadier energy

For this reason, many nutrition researchers consider protein the most reliable foundation for breakfast.

---

Your morning activity also matters

What you’re about to do during the morning changes what kind of breakfast works best.

If your morning involves physical activity, your body can use more carbohydrates for quick energy.

If you’re going into hours of desk work, a breakfast centered around protein and fiber usually keeps energy steadier and prevents mid-morning crashes.

---

A simple structure that works well

Instead of looking for a perfect meal, it helps to think in terms of balance.

A breakfast that tends to keep energy stable usually includes:

Protein
eggs, yogurt, cheese, tofu, protein shake

Fiber
vegetables, berries, fruit

Optional carbohydrates
oats, whole grain bread, potatoes — especially if you are active in the morning

Some healthy fat
olive oil, nuts, avocado

This combination digests more slowly and provides a steady energy supply.

---

So what is the “perfect” breakfast?

There isn’t one universal meal that works for everyone.

But a practical guideline is simple:

If you eat breakfast, make protein the center of it and keep sugar low.

The exact foods matter less than the overall structure — and just as important is whether eating early actually helps your energy and focus throughout the day.

When it comes to breakfast, the goal isn’t perfection — it’s stable energy.

08/03/2026

🧠💪Discipline Is Only the Beginning

People often look at someone who exercises regularly, eats healthy, doesn't drink alcohol or wakes up early and think:

“Wow, that person has incredible discipline.”

But neuroscience tells a different story.

Most healthy people are not constantly forcing themselves to do these things. They simply built habits.

In the beginning, yes — it requires discipline.
You have to override your normal patterns and show up even when you don’t feel like it.

But your brain is designed to make repeated behaviors easier over time.

Through a process called neuroplasticity, your brain literally rewires itself around repeated actions. The more you repeat a behavior, the less effort it requires. Eventually it becomes automatic — like brushing your teeth.

Research shows that habits don’t form in 21 days as many people believe. On average, it takes about 66 days of consistent repetition for a behavior to start becoming automatic, though it can vary depending on the person and the habit (18-254 days from 2009 study by Phillippa Lally at University College London)

This is why the beginning feels so hard.

Your brain is still deciding:
“Is this something we do now?”

Neuroscientist Andrew Huberman also explains that dopamine plays a key role in habit formation. Dopamine isn’t just about pleasure — it’s the chemical that drives motivation and reinforces behaviors that move us toward a goal.

Each time you repeat the behavior, your brain strengthens that circuit.

So if you’re struggling to exercise, eat better, or sleep earlier, remember this:

You’re not trying to be disciplined forever.

You’re just training your brain long enough for the behavior to become automatic.

Discipline starts the process.
Habit finishes it.

Your future self won’t need motivation.

They’ll just call it routine.

Pick one small healthy behavior and repeat it daily for the next few weeks. Don’t aim for perfection — aim for consistency. Let your brain turn it into a habit.

05/03/2026

🤔When is it best to fast? - I am asked a lot.

“Best” depends on what variable you’re trying to optimize:
fat loss,
insulin sensitivity,
mental performance,
sleep quality,
training performance, or adherence.

Below is the physiology-driven breakdown so you can choose deliberately rather than copy a trend.

---

1) Metabolic physiology (circadian biology first, not calories first)

Human glucose tolerance follows a strong diurnal rhythm:

Morning → highest insulin sensitivity

Afternoon → moderate

Night → worst (melatonin suppresses insulin secretion)

This means the same meal at 23:00 produces significantly higher glucose and insulin exposure than at 10:00.

So fasting late in the day is metabolically superior to skipping breakfast.

---

2) Compare common fasting schedules

Early Time-Restricted Eating (eTRE)

Eat: ~08:00–16:00
Fast: afternoon + night

Metabolic outcome: Best for health markers!!

Pros:

lowest insulin

improved glucose control

reduced hunger hormones

better sleep architecture

aligns with circadian clock genes

Cons:

socially inconvenient

hard if you train evenings

➡ This consistently beats all other IF patterns in controlled trials.

---

Classic 16:8 (skip breakfast)

Eat: ~13:00–21:00

Metabolic outcome: Weight loss works, health optimization mediocre

Pros:

easiest socially

adherence high

calorie restriction happens automatically

Cons:

glucose spikes larger

sleep slightly worse

more evening cravings

➡ Good compliance tool, not the biologically optimal schedule.

---

OMAD (one meal a day)/ very late eating

Eat: one meal in the evening only

Metabolic outcome: Worst physiologically despite weight loss

Problems:

huge insulin spike

impaired lipid handling

poorer sleep

cortisol disruption

➡ Effective for weight reduction through calorie restriction, not metabolic health.

---

3) Performance & cognitive angle

Morning fast (skip breakfast):

↑ adrenaline

↑ focus

↓ physical power output

good for desk work

Evening fast (early dinner):

better recovery hormones

deeper sleep

better body composition

---

4) The practical hierarchy (evidence-weighted)

Best overall health:
→ Finish eating by late afternoon (eTRE)

Best compromise life + health:
→ Last meal 18:00–19:00

Best for social life adherence:
→ 12:00–20:00

Worst (despite popularity):
→ Large late dinner / OMAD night eating

---

5) What actually matters more than fasting length

In real populations, outcomes correlate more strongly with:

1. Last meal timing

2. Protein distribution

3. Sleep alignment

4. Total calories

—not fasting duration itself.

People overestimate the “hours fasted” variable.

---

Bottom line

If you want a single actionable rule:

> Stop eating 3–5 hours before sleep.

That captures ~80% of fasting benefits without lifestyle friction.

Hope this helps.

02/03/2026

Digestion Begins Before the First Bite

Digestion doesn’t start in your stomach.
It starts in your eyes… and your nose.

Before a single bite enters your mouth, your brain has already begun the process.

You see food → you smell it → your brain predicts what’s coming → signals travel through the vagus nerve → saliva, stomach acid, bile and enzymes begin to prepare.

This is called the cephalic phase of digestion — and it can account for a surprisingly large portion of your digestive secretions.

In simple terms:
your body starts digesting the idea of the food before the food itself.

The (very brief) journey of digestion

-Cephalic phase – anticipation, smell, sight, thought

-Oral phase – chewing, saliva enzymes begin breakdown

-Gastric phase – stomach acid + protein digestion

-Intestinal phase – bile, pancreatic enzymes, absorption

Every stage depends on the previous one working properly.

If the first step is rushed, distracted, stressed, or skipped — the next ones must compensate.

And the body compensates poorly when digestion is concerned.

How you eat is part of digestion:

Eating while scrolling
Eating in front of the TV
Eating at your desk
Eating during arguments
Eating standing up
Eating while thinking about emails

All of these blunt the cephalic phase.

Your brain is busy somewhere else → it doesn’t send a strong digestive signal → enzyme release is incomplete → food reaches the stomach under-prepared.

The stomach now receives a mechanical problem instead of a biochemical one.

Result:
bloating, heaviness, reflux, gas, fatigue after meals

Not because the food was “bad”.
Because digestion was unprepared.

Compare two meals:

Meal A

standing
laptop open
fast chewing
swallowed in 6 minutes
thinking about work

Meal B

seated
looking at food
smelling it
chewing slowly
tasting

Same calories.
Different hormonal response.
Different enzyme release.
Different blood sugar curve.
Different microbiome fermentation.

Your digestive tract cares less about what you ate than whether it was allowed to digest it properly.

Taste is a biological instruction.
Flavor is not entertainment.
It is biochemical information.

Sweet → insulin priming
Bitter → bile stimulation
Sour → gastric acid stimulation
Umami → protein digestion signaling

When you rush eating, you silence these signals.

Swallowing quickly is like trying to read a book by flipping pages without looking.

Your gut can only process what your brain has registered.

Eating while stressed = digestive shutdown

When angry, anxious or rushed → sympathetic nervous system dominates.

This means:

-cortisol rises
-blood shifts to muscles
-stomach acid decreases
-motility becomes irregular
-enzyme secretion drops

The body is prioritizing survival, not nourishment.

You cannot digest while in fight-or-flight mode.

So when people say
“I eat healthy but still feel bloated”

Often the missing nutrient is not magnesium or probiotics.

It is parasympathetic activation — the “rest and digest” state.

Why “don’t eat angry” exists in every tradition?

Nearly all traditional cultures have rules around food mood.
Not metaphorically — physiologically.

Ancient Mediterranean texts advised cooks to be calm before preparing meals.
Ayurvedic writings warned against eating during emotional disturbance.
Monastic traditions required silence before meals.
Japanese tea ceremony formalized pre-meal presence.

Different cultures. Same observation:
your nervous system becomes part of the meal.

Cooking mood matters (not mysticism — biology)

It sounds poetic when someone says:
“I cooked with love.”

But translate that biologically:

Calm state while cooking →
-rhythmic breathing
-parasympathetic dominance
-slower movements
-sensory engagement with aroma

This primes your own digestion before eating.
And social eating synchronizes nervous systems — others mirror it.

Meals prepared in tension tend to be eaten in tension.

You don’t only ingest nutrients.
You ingest context.

There is a reason people used to thank their food.
Not because the food changes — but because we do.

In that small pause, the rush leaves the body.
And only then can the meal truly begin.

__________________________________

A small ritual before eating:

You don’t need rules.
You just need a moment.

Before the first bite, pause.
Sit down.
Look at your food — really look at it.
Notice the colors, the steam, the smell.

Take one slow breath.....

Let your body realize:
we are about to be nourished, not rushed.

While eating....

Let the first three bites be slow.
Taste them properly.
Feel the texture change as you chew.

You don’t have to count chews — just stay with the bite until it softens and becomes easy to swallow.

At least once, put the fork down.
Not as a rule — as a reminder you are here.

After finishing.....

Give your body two quiet minutes.
No phone, no standing up immediately.

Let the stomach begin its work
without being pulled back into the noise of the day.

That’s all.

Not a diet.
Not discipline.
Just a signal to your nervous system:
You are safe. You can digest now.

The body doesn’t only need nutrients — it needs your presence to know what to do with them.

Eating was never meant to be a task, but a small daily ritual we’re allowed to enjoy and savor.

27/02/2026

🦸‍♂️♂️Hormonal shifts are not exclusive to women. Men go through comparable phases as well — only their cycle resets every 24 hours instead of every month.

Men don’t run on a monthly hormonal cycle like women. Their “season” resets every 24 hours — governed mainly by the circadian rhythm and daily testosterone fluctuations.

A man’s day can be understood as four repeating micro-seasons:

🌅 Morning — Spring (Activation & Drive)
Testosterone peaks in the early morning. This is when men feel most decisive, focused, and physically capable.
Best time for: heavy training, important decisions, challenging mental work, starting projects.
The body wants action.

☀️ Midday — Summer (Performance & Output)
Energy stabilizes and coordination remains high.
Best time for: meetings, productivity, social interaction, problem-solving.
This is output mode — do, build, perform.

🌆 Late Afternoon / Early Evening — Autumn (Wind-Down & Reflection)
Testosterone begins to decline and cortisol should fall.
Best time for: lighter workouts, creative work, planning, reviewing the day, connection without pressure.
Push too hard here and stress accumulates.

🌙 Night — Winter (Rest & Repair)
Hormones shift toward recovery and nervous system repair.
Best time for: deep rest, sleep, intimacy without overstimulation, stillness.
This is where growth actually happens. Poor sleep lowers next-day testosterone.

The key difference from women: women cycle across weeks, men cycle across a single day.

Men don’t need to power through nonstop — they need to respect the daily rise and fall of energy and hormones. When ignored, fatigue accumulates, sleep worsens, and motivation and libido gradually decline.

Working with the male body:

-Do the hardest things early

-Protect sleep as non-negotiable

-Train hard, then truly rest

-Stop demanding peak performance at night

When a man lives in rhythm with his 24-hour cycle, energy feels natural again — not forced.

Try organizing tomorrow around this once — you might notice the day cooperating back.🤓💪