evolutionary mismatch

Evolutionary mismatch occurs when human bodies and behaviors are no longer suited to the modern environment because they evolved to thrive under different conditions. For example, our ancestors evolved to crave high-calorie foods and be active daily, but today, readily available junk food and sedentary lifestyles can lead to health problems like obesity and heart disease. This mismatch results from rapid changes in society and technology that outpace our biological adaptations, highlighting how some traits advantageous in the past may now cause difficulties in contemporary life.