finding your edge with Hormesis and SISU
While “happiness” is often equated with comfort and ease, research reveals that manageable challenges and mild stressors are crucial for fostering well-being and resilience. This principle, known as hormesis, demonstrates how controlled doses of physical, emotional, or cognitive stress can lead to increased strength, resilience, and overall happiness. Coupled with sisu—the Finnish concept of tenacity, courage, and perseverance—hormesis provides a practical framework for achieving enduring fulfillment and mental sturdiness.
HORMESIS AND ITS ORIGINS
Hormesis has its roots in toxicology, where it was observed that many substances are beneficial at low doses while harmful at higher levels. This principle was famously summarized by the 16th century physician Paracelsus as “the dose makes the poison.” In the mid-20th century, researchers confirmed that small amounts of certain toxins and stressors could stimulate adaptive responses, increasing resilience across various biological systems.
A well-known example of hormesis is exercise. Physical activity stresses the musculoskeletal and cardiovascular systems, prompting them to strengthen and adapt. Exercise has also been shown to immediately improve mood, reduce anxiety, and enhance cognition by releasing mood-boosting neurotransmitters like endorphins, serotonin, and dopamine. In the longer-term, regular exercise stimulates neurogenesis —the creation of new neurons—particularly in the hippocampus, which plays a key role in memory and emotional regulation.
SISU: APPLYING HORMESIS TO DAILY LIFE
Sisu aligns closely with the principles of hormesis, emphasizing pushing one’s limits to build inner and outer fortitude. The benefits of sisu-aligned practices—including sauna, cold plunges, and other stress-adaptive challenges—can be explained scientifically by hormesis. Engaging in these activities can help develop the capacity to handle physical and psychological stress in a more optimal manner.
The annual SISU Ski Fest in Ironwood, MI, is a prime example of hormesis. Preparing for and participating in such an activity encourages individuals to engage with multiple manageable stressors. These, in turn, build stamina and adaptability, foster a sense of accomplishment and satisfaction, and contribute to long-term happiness.
BALANCING CHALLENGE WITH MODERATION
While enduring challenges can boost resilience, a balanced approach is essential. Overextending oneself can lead to “toxicity,” manifesting as injury, burnout, or excessive mental and physical stress, which negates the positive effects of hormesis. Recognizing and self-monitoring personal limits is crucial for effectively harnessing hormesis and sisu. Gradually pushing boundaries while respecting personal limits enables individuals to leverage hormesis without risking harm.
CONCLUSION
Hormesis and sisu together offer a compelling framework for understanding how manageable stressors contribute to happiness and resilience. By embracing challenges in controlled ways, individuals can cultivate physical and emotional growth, leading to a more fulfilling, resilient, and happy life.
Suzanne Lee & Peter Pryde
Suzanne and Peter are retired doctors and avid skiers. They moved to Ironwood for the skiing, the community, and the open-air life.
