New research suggests that caffeine intake (i.e., a capsule containing 4 mg/kg) has an ergogenic effect on dynamic visual acuity (DVA) — the ability to resolve fine details when there is relative motion between the target and the observer — which may be of special relevance in real-word contexts that require to accurately and rapidly detect moving targets (e.g., sports, driving, or piloting). Redondo et al. found a greater accuracy for...