Take Care of Your Brain Health, by neurologist David Pérez Martínez, is not a business book. Nor does it claim to be. Yet it deserves a place on the desk of more than a few executives, entrepreneurs, and professionals who take their work seriously over the medium and long term.
That is because behind almost every organization lies a resource discussed far less than capital, technology, or talent: people’s ability to think clearly. Making decisions, sustaining attention, processing information, anticipating scenarios, learning, and maintaining emotional balance are core functions for anyone leading or driving a project. And ultimately, they all depend on the brain.
Today’s environment does not help. Long working days, back-to-back meetings, an always-on phone, interrupting messages, pressure to deliver results, and an increasingly blurred line between professional and personal life. In this setting, protecting brain health is no longer solely a concern of old age. Pérez Martínez makes this clear from the outset: it is built over the course of a lifetime.
The book examines well-known factors—exercise, diet, sleep, stress, hypertension, social isolation, and intellectual stimulation—and explains their relationship to the brain. Viewed through a business lens, some take on a different significance. Sleeping well is no longer simply about well-being. Staying active is not merely about keeping fit. Continuing to learn is not just professional development. Nor do satisfying social relationships belong exclusively to private life. They are all components of preserving our cognitive capacity.
Particularly thought-provoking is the concept of cognitive reserve: a kind of buffer that enables the brain to better withstand certain damage and continue functioning. Education, lifelong learning, intellectual activity, exercise, and social ties all help build it. In professional terms, the message is compelling: learning throughout life does more than enhance a résumé. It can also help build a more resilient brain.
There is also a paradox of our time. We have never had so many tools to save time, yet a significant share of professionals and executives live with the constant feeling that they do not have enough of it. Email, messaging, social media, videoconferencing, and artificial intelligence are multiplying our capacity to produce and access information. The question remains whether they are expanding, to the same extent, our ability to process it.
Without being alarmist, the book encourages readers to question the culture of constant availability. Not because technology is the enemy, but because attention, rest, and recovery are also part of how the brain functions.
There is another issue gaining importance for a generation that will live—and probably work—longer than previous ones. The challenge is no longer simply to live longer, but to arrive there still able to learn, decide, create, and connect with others. Pérez Martínez notes that a meaningful share of dementia risk is linked to factors that can be addressed. In recent interviews, he has put the proportion of cases that could be prevented or delayed through action on modifiable factors over the course of life at about 45 percent. This is not an individual guarantee, nor does it mean that all dementias can be avoided. It is simply a useful reminder that our decisions matter.
Take Care of Your Brain Health thus opens a conversation that extends beyond health care. Professional longevity in the future may be measured not only by how many years we are able to work, but by how many of those years we can keep alive our curiosity, our ability to learn, and our freedom to make sound decisions.
