Environmental toxins can significantly impact fitness by disrupting hormonal balance, which could affect metabolism, energy levels, and muscle function. Exposure to pollutants, such as heavy metals and industrial chemicals, may lead to chronic health issues, ultimately impairing physical performance. Additionally, toxins can cause inflammation, leading to fatigue and decreased motivation for exercise. Being aware of environmental factors and opting for cleaner, healthier options may help mitigate their influence on fitness and overall health.