By. Juan David Caicedo-Narváez, MD, PhD(c)
Clinical Research Physician
We often think of sleep as a simple pause, a silent interlude where life stops until the alarm rings, but the reality is much more fascinating and complex. Far from being a passive state, sleeping is an active and fundamental biological process… A kind of nocturnal workshop where our body performs maintenance tasks that are impossible to execute while we are awake. Current research increasingly shows that sleep is a crucial determinant of our overall health and a fundamental requirement for well-being throughout our entire existence. When we neglect it, whether through insufficient duration or poor quality, we open the door to serious risks of diseases such as hypertension, diabetes, obesity, and even certain types of cancer¹.
However, sleep plays one of its most important roles when it comes to the protection of our mind. Recent research, which has analyzed the medical records of millions of people, has discovered a profound connection between sleep disorders and neurodegenerative diseases. Problems like insomnia or sleep apnea have been observed to be not just nocturnal annoyances, but risk factors that can appear up to 15 years before diseases like Alzheimer’s or Parkinson’s are diagnosed. This suggests that sleeping well acts as a protective shield for our brain; during those hours of rest, our system oversees the clearing of harmful substances, such as the amyloid protein, whose accumulation is linked to cognitive decline ¹.
The current scientific landscape is hopeful and very active, with studies that seem straight out of the future, looking for ways to prevent deterioration before it starts. For example, the NIH funded Sleep Aging and Risk for Alzheimer’s (SARA) project is using advanced brain imaging technology (PET) to observe how changes in sleep and apnea affect the accumulation of this cerebral “waste” in older adults who still enjoy healthy cognition. The great promise of this research is that sleep is a modifiable factor; this means that if we manage to treat sleep disorders in time, for example, by using simple therapies or devices like CPAPs for apnea, we could have a powerful tool to slow down or prevent devastating neurological diseases. The goal is to understand whether treating these sleep problems early could prevent or slow down diseases like Alzheimer’s, especially in people who still have normal cognition. Furthermore, something encouraging has been observed: having good “sleep hygiene” or treating conditions like apnea could even compensate if you have a certain genetic risk of developing these diseases ².
IGC Pharma is committed to your brain health, and recognizing the power of rest, we offer these 3 essential tips to optimize your sleep hygiene 3:
- Avoid exposure to artificial light for at least one hour before going to bed. This means TVs, cellphones, laptops, or other screens that generate bright lights.
- Be mindful of what you eat and drink before bedtime. Consume evening meals at least two hours before bedtime; avoid caffeine intake at night if it keeps you awake.
- Minimize bright lights, noise and other potential disruptors in your bedroom.
Finally, it is vital to recognize that sleeping well should not be a privilege, but a health right accessible to everyone, although unfortunately, this is not always the case. It turns out that not everyone sleeps equally poorly, and this is not a coincidence. “Sleep health disparities” exist, meaning that certain groups, due to factors such as stress, their living environment, or their economic situation, suffer more from lack of sleep. For instance, insufficient sleep duration has been found to be more common in certain racial and ethnic minorities and in people with fewer economic resources. For this reason, major institutions are funding projects to create interventions that do not rely on pills, but instead seek to improve the environment, change schedules (like delaying school start times), and promote sleep health in underserved communities. At the end of the day (literally), science is telling us that sleeping well is not a luxury, but a powerful and modifiable tool to protect our brains and bodies in the long term 4.
As a result, new initiatives seek not only to develop new medications but also to promote community interventions and lifestyle changes that allow people of all ages and backgrounds to support their long-term brain health. As research continues to evolve, one message is becoming increasingly clear: prioritizing healthy sleep is one of the simplest and most meaningful ways to support lifelong brain health.
- Simmonds E, Levine KS, Han J, Iwaki H, Koretsky MJ, Kuznetsov N, et al. Sleep disturbances as risk factors for neurodegeneration later in life. Npj Dement. 27 de mayo de 2025;1(1):6.
- U.S. National Library of Medicine. Sleep Aging and Risk for Alzheimer’s Remission 2.0 (SARA) [Internet]. 2019. https://clinicaltrials.gov/ct2/show/NCT02278119
- De Pasquale C, El Kazzi M, Sutherland K, Shriane AE, Vincent GE, Cistulli PA, et al. Sleep hygiene – What do we mean? A bibliographic review. Sleep Med Rev. junio de 2024;75:101930.
- Jean-Louis G, Grandner MA, Seixas AA. Social determinants and health disparities affecting sleep. Lancet Neurol. octubre de 2022;21(10):864-5.
