The potential risks of too much exercise without adequate rest include increased likelihood of injury, fatigue, and burnout. Overtraining can lead to decreases in performance, disrupted sleep patterns, and hormonal imbalances. It may also weaken the immune system, making individuals more susceptible to illness. To mitigate these risks, it’s essential to incorporate rest days and listen to the body's signals. Balancing training intensity and recovery ensures optimal performance while maintaining long-term health and sustainability in fitness routines.