After five hours of racing, a climb is no longer just a climb, but first and foremost it becomes a mental conversation. The brain begins to make continuous calculations: how much further, how much am I consuming, how fast are the others going, how much pain can I still tolerate, whether it makes sense to respond to that attack or let it go. It is in that moment that the Giro d'Italia stops being merely a physical race and becomes something far more interesting: a cognitive battle.

When we watch cycling, we tend to observe almost exclusively what is visible: the legs, the watts, the time gaps, the climbs, athletic preparation, nutrition, equipment. All fundamental elements, of course. But anyone who truly lives professional cycling knows that there is another race, far less evident, that unfolds simultaneously inside the minds of the riders. And often it is precisely there that everything is decided.

In recent years neuroscience and behavioral sciences have begun to reveal something extremely interesting: fatigue (as well as the quality of performance itself) is not merely a muscular phenomenon, but also a cerebral construction. This means that the brain does not simply register fatigue, but continuously interprets it. And this is an enormous difference.

Because two athletes can experience very similar effort in completely different ways. Not only due to physical condition, but also (and especially) due to mental condition: perception of effort, level of attention, quality of inner dialogue, ability to remain lucid under pressure, and so on.

In professional cycling this dynamic becomes even more evident. The Giro d'Italia is not a one-day race: for the mind of those who experience it as protagonists, the Giro is effectively an extreme environment, prolonged for weeks. And the human brain, in extreme environments, changes how it functions.

After hours of effort, the consumption—beyond being energetic—becomes decidedly cognitive: attention narrows, decision-making clarity declines, negative thoughts become more invasive, even details begin to weigh more heavily, and even the perception of the road can change.

This is why, sometimes, even the apparently most brilliant rider can suddenly "crack" from one day to the next: from the outside we see the body give way, but often the process began much earlier, and concerns something far less tangible. In short, quoting a dear friend with whom I wrote a book, it is more a matter of "watts per neuron" than "watts per kilogram".

In the world of neuroscience there exists a very interesting concept called "cognitive fatigue". In simple terms, it is the progressive exhaustion of the mental systems involved in attention, concentration and decision-making ability. It is the same phenomenon that occurs after a workday packed with appointments, commitments, stressful activities, to put it plainly.

And at the Giro d'Italia (but in reality, as I said, it applies to every challenge in all our daily lives) this component is everywhere, and it is expressed to the nth degree.

A rider must indeed manage countless variables simultaneously: the race, strategy, radio communications, positioning, weather, opponents, physical pain, nutrition, risk of crashes, team expectations, the standings, media pressure, constant comparison with others. And the list could go on for much longer.

But, to summarize, there are three most relevant and impactful lessons we can take away if we analyze the behind-the-scenes of the mind of those who are racing the Giro d'Italia right now. Three precious lessons about the human mind.

1. Fatigue changes how we interpret reality: after hours of effort, the brain tends to amplify pain, difficulties and negative signals. Therefore, not only does the body change, but the way we perceive what we are experiencing changes. This is why, on certain days, even an apparently "normal" climb can seem endless. Mental fatigue narrows perspective, increases the weight of negative thoughts and causes the brain to focus much more on danger than on possibility. From a neuroscientific point of view, it is not so much what we experience but always and only the way we perceive it that truly makes the difference.

2. The brain anticipates fatigue before it even arrives: one of the most surprising things is that the brain does not wait to be completely "finished" to slow down. Very often it begins to reduce performance, motivation and tolerance to effort already when it perceives the risk of exhausting too many resources, therefore well before reaching its limit. This is why, sometimes, the hardest part of a climb does not coincide with the most demanding section, but with the thought of the climb itself. The mental anticipation of suffering can consume energy even before the actual effort.

3. The quality of thoughts influences the quality of decisions: under pressure the brain constantly seeks shortcuts. And it is precisely there that lucidity, interpretation of fatigue and the ability not to be swept away by mental noise make the difference. Great champions are not necessarily those who have no doubts or fears, but rather often those who manage not to transform a momentary negative thought into an absolute truth while everything around them begins to complicate.

And it is precisely this aspect that is most fascinating about the Giro d'Italia: observing it carefully, one realizes that cycling tells us far more than simple physical effort, training and leg strength. It tells us first and foremost how the human brain reacts when pushed close to its own limit, showing in an almost brutal way a truth that we often tend to forget even in our daily lives: when pressure, fatigue and uncertainty increase, not only does our body change, but our way of thinking, choosing and acting changes.

For this reason cycling does not reward only those with the strongest legs, but increasingly rewards those who manage to better protect the quality of their thoughts when everyone else begins to mentally wear down. And it is here that the Giro becomes fascinating from a human point of view as well as a sporting one, because it tells us something that goes far beyond sport and concerns the lives of all of us.

It tells us what happens to human beings when they must continue to perform under pressure, fatigue and uncertainty. And it is precisely there that enormous differences emerge between athletes (and more generally between people).

Because the real difference is not eliminating difficulties and fatigue (those, whether we like it or not, exist and will always exist both in cycling and in life), but rather being able to coexist with them without letting them take over. Everything starts from one particular detail (both at the Giro and in life): from the way we turn on our mind. In other words, from the way we think, which in turn influences the way we choose, which ultimately impacts the way we act. Thoughts, choices, actions: everything originates from the way we control the mind (preventing it, instead, from controlling us).

It is there that the Giro definitively stops being merely a cycling race and becomes one of the most extreme and fascinating representations of human behavior under pressure.

Perhaps this is also why cycling continues to have something profoundly different compared to other sports. Because within those hours of fatigue and extraordinary performance we see not just athletes, but people who are constantly trying to manage attention, fear, energy, expectations, pain and thoughts while the body asks to slow down.

From this perspective, the Giro d'Italia takes on a whole different charm and flavor: beyond being the most beautiful (and hardest) race in the world in the most beautiful country in the world, it becomes—from a neuroscientific point of view—also the perfect metaphor for the challenges that all of us spectators face every day, thus telling a piece of our lives. At work, in our personal lives, in life. And knowing how to turn on one's mind in each of these challenges is what truly makes the difference.

1 - to be continued

Michele Grotto is an architect of choices and behavioral strategist. He works with behavioral sciences applied to decision-making processes and improvement of human performance. He founded BrainHacking® and is co-author, together with Ivan Basso, of the book "Accendi la mente" (Bompiani).