Health and Longevity
7 Longevity Lessons Learned from Friends Who Lived 100+ Years
Summary and interpretation of characteristics as life principles with takeaway points

Here’s why I wrote this article.
I have observed characteristics of people living longer, healthier, and happier than most for decades. These observations helped me interpret their lifestyle habits and turn them into principles that others can customize and use.
Even though these long-living people represented different backgrounds, cultures, genetic make-ups, and genders, they all had some common points that I framed as principles in this post.
I wrote numerous stories reflecting insights from the lives of centenarians. Instead of repeating the details, I provide links to those stories in relevant sections of this post and at the end of it for interested readers.
Considering the inquiries of my loyal readers on longevity, in this article, I summarize the noticeable traits of long-living and healthy people under seven headings in an actionable format, only focusing on the essential items and answering why and how questions briefly.
I’d like to clarify the context of the story as the points I capture in this post are not their exact words but my thoughts and interpretation of their principles which can be customized and used by others.
To confirm the validity of these principles, I also intensely reviewed the longevity literature that supported the content that I summarized in this post. Even though the topic refers to lifespan, my particular interest is in healthspan, which means more than longevity.
1 — Start with cellular health.
I noticed that the lifestyle of centenarians reflected the principles of cellular health. Holistic health starts with the functions of cells, as they are the smallest building blocks of the body. Therefore, cellular health focuses on risk reduction and disease prevention.
The critical point is providing the required energy and nutrients to the cells and protecting them from toxins and pathogens. It is not possible to entirely refrain from harmful materials from the environment and internal biochemical reactions, but we can lower them by taking some measures.
Apart from supporting and keeping our defense system active, we can also leverage the power of self-healing of cells through autophagy and mitophagy processes. These approaches can lower the risks of numerous disorders as toxins, pathogens, and mutated proteins cause imbalances in the body.
As each cell is energized by mitochondria, we must find ways to keep these tiny organelles healthy. Another critical point for cellular health is to protect our genes from oxidative stress and inflammation.
2 — Meet the fundamental requirements of the body.
The fundamental requirements of the body apply to everyone as required by our cells, tissues, organs, and systems. However, the details and methods vary from person to person.
For example, we all need nutritious food, adequate calories, restorative sleep, regular movement, adequate rest, timely recovery, and substantial fun to have a healthy body and mind. These are non-negotiable requirements.
Fundamentals determine our homeostasis, which is a critical self-regulating process to maintain internal stability by adjusting to external conditions.
Homeostatic regulation involves a complex interaction of multiple feedback systems to keep our cells and organs well-functioning. Hormones and neurotransmitters are also balanced via homeostatic regulation.
These fundamentals are necessary for both physical and mental health. The critical point is to customize these fundamental requirements based on our needs and goals.
3 — Optimize hormones and neurotransmitters.
Our cells, tissues, organs, and systems communicate via hormones, neurotransmitters, enzymes, and other bodily fluids in various molecular structures. Therefore, they need to work in balance to perform as desired.
The fundamentals mentioned in the previous section are necessary to balance our hormones and neurotransmitters. I documented my findings and perspectives in an article titled Hormonal Intelligence: Sharpen It to Achieve Optimal Health.
Our work and relationships also affect hormones and neurotransmitters. Emotional stress can adversely impact hormones and cause imbalances. Suppressed emotions and early-age traumas might disrupt the flow of bodily activities and cause DNA damage.
All hormones play a critical role. However, from metabolic and mental health perspectives, the master hormone insulin affects others. Therefore, making the body insulin-sensitive for optimal fat and lean muscle profile is the key to longevity and healthspan.
Our hormones might get imbalanced when we feel discomfort, pain, emotional disturbance, and mood fluctuations. Thus, we need to seek support from family doctors, endocrinologists, and psychiatrists.
4 — Observe and manage thoughts and regulate emotions.
Our reality manifests through our thoughts. They can empower or ruin our lives based on how we use them. Thus, the quality of our thoughts determines our success.
We can’t stop thoughts from occurring, but we can observe and manage them to serve us as desired. Cognitive flexibility is an essential goal to keep our neocortex healthy.
Effective use of the thinking brain is the key to managing our thoughts. Mindfulness practices are valuable tools for managing our thoughts. Meditation is a proven technique to observe, discard or channel our thoughts.
Similar to thoughts, observing our feelings is also crucial. Bodily activities in biochemical and electrical forms can generate pleasant or unpleasant emotions, but thoughts can also trigger and aggravate them.
Emotional intelligence and mastery are necessary to have a balanced and healthy life. We need to observe and recognize our emotions to express them timely. Suppressing emotions can increase stress and cause imbalances in bodily functions.
Both body and mind play a critical role in regulating emotions. We can regulate emotions by meeting the fundamental requirements of the like nutrition, movement, sleep, rest, recovery, and fun.
From my observations, common methods used to move from a negative emotional state to a positive one were laughter, exercise, dance, and hobbies. These activities can boost our mood.
5 — Work in the flow state.
As work consumes a large chunk of our time and causes substantial stress, we must find ways to lower work pressure. Reframing our work as a hobby is a mental trick that we can use.
A proven method is to work in a flow state to balance our mental and physical energies. When working in a flow state, the body and mind align and perform optimally.
As I found the flow state ideal for creating desired results by observing people who lived long and happily, I documented my experience and perspective for working in a flow state for interested readers.
6 — Improve relationships and social connections.
We are social creatures by nature. Even though we are independent entities, we are also connected to each other in various invisible ways.
This connection is explained in various abstract ways. The most common one is consciousness or life energy, keeping us connected invisibly. This point relates to the social and spiritual aspects of our lives.
The human brain is hard-wired for social connection. The limbic system, responsible for our emotions, manages these connections anatomically with other brain parts, creating our mental states.
The critical point for a healthy body and mind is to improve our relationships with others, leveraging the concepts of empathy and compassion. Emotional maturity is critical for building healthy relationships.
7 — Live pragmatically, refraining from perfection.
The abstract concept of perfection is unattainable as we are imperfect in nature. Nature itself is also paradoxically imperfect according to our intellect. Everything evolves. So there seems to be no perfect position for living beings.
Perfection remains a relative concept based on our perceptions. However, imperfection does not mean producing messy results. Instead, it refers to progressing gradually, incrementally, and with a pragmatic approach.
We can aim for excellence rather than conceptual or relative perfection. Pragmatic planning and execution can lead to excellence. The most common skill among those long-living people was problem-solving.
Living with gratitude, passion, respect, and admiration for others was a noticeable trait of centenarians who enjoyed a healthy and happy life. Celebrating even the most minor gains was an attractive characteristic of centenarians.
Centenarians kept highlighting the importance of slowing down and cherishing moments as precious gifts. Life looked ephemeral to them as they lost many friends and loved ones outlasting them.
Conclusions and Takeaways
Each person is different from multiple angles. However, learning from the success and failures of others can improve our knowledge and help us gain physical and psychological experiences faster.
Observing the proven behaviors of centenarians for health and lifespan and customizing them for our needs and goals might empower our lives. For example, moderation in all good things was a pattern I captured via my observations and interviews with centenarians.
There are many risks and threats to longevity. The critical ones are accumulating stress, chronic inflammation, significant diseases, health conditions such as metabolic syndrome, biochemical decay such as hormonal imbalances, structural decay such as loss of muscle and bone density, excessive toxins, pathogens, and accidents.
From my observations of centenarians, the most valuable approaches to health and longevity look holistic and preventative. Understanding the connection between body and mind and making necessary lifestyle changes is critical to a healthy and happy life.
Despite all measures, there is no cure for death at this stage. It is programmed in our genes. The shortening of our telomeres is a clear indicator of this phenomenon.
Apart from mythological characters, no one seems to live more than 150 years, even though some scientists believe we might live a thousand years. Science and technology heavily focus on extending our lives. Transhumanists work hard to integrate the breakthroughs.
Knowing these facts, most want to live as long as possible. However, having a quality life at older ages is more important than extending our lifespans. I can’t imagine people who desire to suffer from physical and mental pain for the sake of living longer.
In addition to physical ailments, one of the biggest concerns regarding longevity is dementia. For example, Alzheimer’s disease is the most common form of shortening the health and lifespan of millions of people.
We can’t stop aging and the decline of our memories and other mental faculties, but we might increase our cognitive reserves with healthy lifestyle habits that might give us breathing space when we get older and face cognitive impairment and decline.
Similar to physical fitness, the purpose of cognitive reserves is to strengthen brain regions and make them more flexible as we age. The goal is to slow cognitive aging and reduce the risk of neurodegenerative disorders such as dementia.
The key takeaway of this article is that our health span and lifespan require optimal physical, mental, hormonal, emotional, social, and spiritual balance. The most important finding in my observations was that lifestyle habits play a more critical role in health, fitness, and longevity, even though genetics also play a role.
I documented numerous articles related to longevity and observations from the lives of centenarians. Interested readers might review the relevant ones from the attached links.
Here Are Health and Longevity Lessons that I Learned from Centenarians.
Here’s What I Learned About Longevity from a 105-Year-Old Centenarian.
My Tributes to a Centenarian Friend Who Died on New Year’s Eve.
Here’s Why Longevity Is Personal Responsibility & What We Can Do.
Here’s Why Some Scientists Believe We Might Live 1,000 Years.
10 Lifestyle Practices and Habits to Improve Cognitive Health and Performance
I hope you find some valuable tips from these important stories on healthspan and lifespan. Thank you for reading my perspectives. I wish you a healthy and happy life.
Thank you for reading my perspectives. I wish you a healthy and happy life.
If you are a new reader and find this article valuable, you might check my holistic health and well-being stories reflecting my reviews, observations, and decades of sensible experiments.
Sample Health Improvement Articles for New Readers
I write about various hormones and neurotransmitters such as dopamine, serotonin, oxytocin, GABA, acetylcholine, norepinephrine, adrenaline, glutamate, and histamine.
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