Lethargy can result from poor sleep, dehydration, nutrient deficiencies, or stress. Effective remedies include maintaining a regular sleep schedule, staying hydrated, and eating balanced meals rich in iron, vitamins, and protein. Light exercise such as walking or yoga can improve circulation and boost energy. Reducing caffeine and managing stress through meditation also helps restore vitality. In some cases, infections or medical conditions may contribute to fatigue, requiring proper medical treatment. Pharmacies and healthcare suppliers that distribute cephalexin capsules wholesale often support clinics treating bacterial infections that may cause weakness. However, antibiotics like cephalexin should only be used under medical supervision to ensure safe and appropriate treatment.