Scientists often use the phrase to describe organisms or pathogens that exhibit extraordinary resistance:
: Cultivating a "military mindset" by seeking out daily obstacles that push you outside your comfort zone and using visualization to overcome fear.
: Training in varied conditions—hot, cold, or even wearing non-traditional gear like hiking boots—to ensure the body can perform anywhere. 2. Biological Survival Hard to Kill
: The Washington Post notes that viruses like SARS-CoV-2 are "hard to kill" because they aren't technically alive; they are simply genetic material waiting for a host, making them resilient to many traditional environmental threats.
: Building a "combat-ready core" through functional movements like single-arm farmer's walks and barbell rollouts. Scientists often use the phrase to describe organisms
: Using a "hybrid endurance" approach, such as combining running with rucking (walking with a weighted pack) to increase durability without the high impact of endless miles.
For those without a "green thumb," selecting plants that can survive neglect is a common goal: Biological Survival : The Washington Post notes that
The concept of being "Hard to Kill" spans several domains, from physical fitness and resilience to biology and even gardening. While it is famously the title of a 1990 Steven Seagal action film, in a modern context, it often refers to a philosophy of extreme durability and survival. 1. Physical and Mental Resilience