Athletic Trainer, Certified (ATC) BOC Practice Test

Staying well-hydrated is a key supportive step when fighting a cold, especially for athletes who are training or recovering from activity. Fluids help prevent dehydration, which can worsen fatigue, headaches, and muscle soreness. They also support the body's defenses by keeping mucous membranes moist and aiding the thinning and clearance of respiratory secretions, making it easier to manage congestion and cough. Fever and sweating can quickly deplete fluids, so increasing intake helps maintain blood volume and supports recovery and performance. Less beneficial in this context is cutting calories; the immune system needs energy, and restricting intake can hinder recovery. Increasing vitamin C has only modest and inconsistent evidence for shortening cold duration or symptoms, so it’s not as reliably beneficial as maintaining good hydration. Decreasing fluid intake would directly oppose the body's needs during illness and is not advisable.