Final answer:
Trevor should apply the principle of rest and recovery to his workout regimen to prevent fatigue. This includes taking rest days for the body to repair and consulting a healthcare professional if necessary.
Step-by-step explanation:
Trevor's fatigue from working out every day for two weeks suggests that he is not following the principle of rest and recovery, which is crucial in a training regimen. To help Trevor, he should integrate rest days into his workout schedule to allow his body to recuperate. This principle acknowledges that the body needs time to repair and strengthen itself between workouts. Ignoring this can lead to symptoms of overtraining, such as the extreme fatigue and muscle aches described in the case study of Jasmin, a former high school track star.
To prevent further injury and encourage optimal performance, Trevor should consider tapering his workouts, getting adequate sleep, and possibly consulting with a healthcare professional to ensure that there isn't an underlying health issue contributing to his tiredness.