Many people understand dieting failure as a problem of weak willpower.
However, this interpretation misses the essence of the issue.
The reason diets fail is actually quite simple.
The human body is structurally designed to resist dieting.
To begin with, the human body resists change.
More precisely, it prioritizes maintaining its current state.
This is an extremely rational survival strategy.
In environments where food availability was unstable, weight loss signaled potential starvation and required immediate correction.
For this reason, the body is equipped with mechanisms such as:
• Increased hunger
• Reduced satiety
• Lowered metabolism (energy conservation)
All of these functions serve one purpose:
to restore body weight to its previous state.
In other words, dieting is fundamentally
an act of going against the body's built-in safety system.
The next key factor is genetic variation.
Body type and the tendency to gain weight are largely influenced by genetics.
This is not a fixed value, but rather a range of possible outcomes.
A body that feels natural and sustainable for one person
may be extremely difficult to maintain for another.
Modern dieting, however, tends to ignore this variation.
The "ideal body" presented by media and social platforms is not universally attainable.
As a result, many people set goals that fall outside their genetic range.
This is where the real problem begins.
When attempting to reach a body outside one's genetic range,
the body responds with strong stress reactions.
Hunger becomes persistent, metabolism slows down, and mental strain increases.
This condition is not sustainable.
Eventually, people return to their previous lifestyle.
As a result, body weight returns as well—often exceeding the original level.
This is what we call "rebound."
It is crucial not to misunderstand where the responsibility lies.
This is not a matter of insufficient effort.
Rather, it is a matter of choosing a battle that is structurally unwinnable.
No one can defeat their own biological structure in the long term.
One may override it temporarily, but homeostasis will always attempt to restore balance.
So what should be done instead?
The answer is simple.
Follow the structure.
Specifically,
identify a state that can be maintained comfortably within your genetic range.
Design sustainable habits instead of relying on extreme restrictions.
Do not depend on willpower—adjust the environment instead.
Dieting is not truly about changing yourself.
It is about understanding your structure and optimizing within it.
Rather than chasing an ideal image,
one should seek the optimal point within real-world constraints.
This shift in perspective is the only reliable path to success.
Finally, there is one important conclusion.
The state you can maintain comfortably
is the correct answer for you.