Throughout the long course of human evolution, the pressures to adapt, survive, and reproduce have shaped our bodies and behaviors, subtly establishing the fundamental laws of health. Today, by understanding evolution, we can uncover the “health secrets” hidden in our genes and apply them to modern health practices. The following seven principles are life guidelines granted by evolution, helping us maintain physical and mental strength and happiness in today’s complex society.
1. Health Is the Foundation of Happiness — Physiological Health Depends on Evolutionary Mechanisms
Human happiness is closely linked to our physiological health, which is rooted in mechanisms shaped by billions of years of survival pressure and natural selection. Every organ and system in our body is designed to adapt to specific environments. Our genes store ancient information guiding how we should eat, exercise, rest, and interact with others. However, the fast pace and conveniences of modern life often contradict these evolutionary principles, becoming the root cause of many chronic diseases and psychological problems.
2. Our Lifestyle Conflicts with Health Principles, Giving Rise to Disease
Since the Agricultural Revolution, human lifestyles have changed drastically—from active hunter-gatherers to settled farmers, then to sedentary office workers in highly industrialized societies. Although technological progress brings convenience, it has distanced our lives from the health laws formed through evolution. Excessive sugar intake, lack of exercise, and chronic stress are self-inflicted wounds caused by lifestyle, not inherent bodily defects.
3. Human Evolution Is Not Linear but Full of Mutations and Leaps
Human evolution did not proceed slowly and smoothly but involved sudden drastic changes and leaps. These nonlinear changes equipped us with unique physical abilities and intelligence—such as upright walking, long-distance running, and complex brain functions. Together, these traits define the physical and psychological structure of modern humans.
4. Running Shaped Humans and Highlighted the Importance of the Brain
Running is more than exercise; it is a key adaptation in human evolution. Our body structures—long legs, elastic tendons, cooling systems—evolved for long-distance running. Yet running itself is meaningless without the powerful and complex brain that gives it purpose and value. The brain coordinates movement, solves problems, and anticipates risks, making humans a unique species on Earth.
5. A Diverse Diet Is the Key to Survival — Humans Are Naturally Omnivores
The diversity of the human diet is an outcome of biological evolution. We can consume both animal protein and abundant plant nutrients. A single-food diet cannot meet the body’s nutritional needs. For a long time, we have sought balance through diverse foods, which not only maintains health but also promotes gut microbiota diversity—an essential foundation for a strong immune system.
6. Empathy and Cooperation Are the Cornerstones of Human Society
Evolution endowed humans with complex social behaviors, with empathy at its core. Empathy allows us to sense others’ emotions and fosters cooperation and group living. Language, culture, and social norms all evolved to enhance this cooperative ability. Human prosperity depends on group collaboration and support—one of evolution’s most precious gifts.
7. Lifestyle-Induced Diseases Are Linked to an Imbalanced Health Ecosystem
Diseases often stem not from genetic defects but from chronic damage caused by modern lifestyles. Sedentary habits, excessive sugar and processed food intake cause metabolic syndrome—a typical modern illness. Research shows that glucose metabolism disorder is central to many diseases. Our bodies do not exist in isolation but are tightly connected to microbial communities, environments, and social ecosystems. Overall ecological health determines individual health.
Detailed Explanation of the Seven Health Principles
Principle 1: Maintain a Low-Carb, Diverse Diet
Modern diets rely excessively on refined carbohydrates and sugar—the “sweet poison” behind many chronic diseases. Researchers highlight reducing sugar and increasing dietary diversity as key to restoring health. Appropriate intake of quality fats, such as unsaturated fatty acids, supports cardiovascular health, while trans fats must be strictly avoided. Processed foods often hide large amounts of sugar and trans fats; choosing natural, unprocessed foods is the friendliest option for the body.
Principle 2: Exercise Shapes the Body and Remodels the Brain
Exercise’s value goes beyond weight loss or shaping; it reshapes brain structure and function through complex neurophysiological mechanisms. Intense aerobic exercise stimulates nerve growth factors, improving memory and cognition, preventing aging and cognitive decline. Importantly, choose an exercise you enjoy to maintain long-term adherence. Physical activity is closely linked to brain health; training the body is training the brain.
Principle 3: Ensure Adequate and Regular Sleep
Sleep is the critical period for body repair and brain information integration. Chronic sleep deprivation leads to obesity, weakened immunity, decreased attention, and mental illness. Ideal sleep time is about 8.5 hours, with a regular schedule. Creating a safe sleep environment and avoiding excessive social isolation helps. Natural light exposure and turning off electronic devices at night aid in adjusting circadian rhythms and promoting deep sleep.
Principle 4: Cultivate Attention and Present-Moment Awareness
In the era of information overload, discerning valuable information is key to survival. Meditation training improves focus and perception—not just relaxation, but enhancing alertness and cognitive precision. Appropriate stress motivates and supports learning; no stress at all is detrimental to growth. Maintaining environmental sensitivity is a vital ability bestowed by evolution.
Principle 5: Return to Nature and Activate Innate Body Instincts
Nature is humanity’s primordial environment. Contact with nature significantly boosts immune function and mental health. Green spaces effectively alleviate anxiety and depression. Our internal ecosystem is inseparable from the external one; nature exposure is an effective way to maintain health. Introducing plants into industrial environments reduces sick leave rates—showing nature’s omnipresent power.
Principle 6: Build Strong Interpersonal Relationships to Gain Happiness
Humans are highly social animals; healthy intimate relationships are a major source of happiness. Oxytocin, the “social glue,” promotes empathy and altruism, but it is double-edged and can bring both positive and negative social effects. Physical exercise and social activities share biochemical pathways aiding mood regulation. Cooperation and intimacy are foundational for human social continuity and prosperity.
Principle 7: Maintain Moderate Stress to Stimulate Body Regulation
The vagus nerve system regulates stress responses. The “vagal brake” signals the body to relax. Proper breathing and moderate exercise regulate emotions and prevent stress imbalance. Chronic, unrelenting stress wears down willpower, but occasional challenges train adaptability and resilience. Life’s surprises bring more joy and motivation than predictable rewards.
Evolution shaped not only our body structure but also fundamental principles for healthy living. Understanding and following these principles is an effective way to combat modern ailments and achieve physical and mental well-being. By returning to origins, respecting nature, and maintaining physical and psychological balance, we can truly realize health, longevity, and inner peace.