Ключевые слова: app, blood, blood circulation, blood donation, blood donor, blood drop, blood pressure, body, circulation, circulation of the blood, circulatory, counter, donation, donator, donor, drink, drinking, drop, drop counter, dropper, health, human, human body hydration, hydrate, hydration, icon, isolated, liquid, man, nutrition, pressure, silhouette, simple, system, test, treatment, vitality, water,