#vigil

• Abuse does not invalidate just use — A fundamental principle in bioethics, pharmacovigilance, and clinical toxicology stating that 'a conclusion from the abuse of a thing to its use is not valid'. In medicine, it means that the prohibition or condemnation of a useful drug or medical treatment (e.g., opioids for severe pain) is not justified simply because some patients or individuals abuse it.
• Agrypnia — A pathological state characterized by total or prolonged insomnia, representing a severe disruption of the circadian sleep-wake cycle. In the context of Orthodox religious worship, the term denotes a lengthy and solemn night service (vigil), celebrated on the eve of major Christian feasts, implying a state of continuous spiritual wakefulness.
• Eve — The day or time interval immediately preceding an important event, a religious holiday, or a memorable date; a period of spiritual or administrative preparation before a solemn moment. In Christian tradition, the term specifically designates the days before major feasts (Christmas, Epiphany), often associated with strict fasting and specific folkloric customs.
• To fast on the eve — To fast (completely or restrictively) on the day or period preceding a major religious holiday; to abstain totally or partially from food and drink as an act of spiritual purification. In a broad sense, to spend time in a state of pious anticipation, respecting the traditional rules imposed on the eve of a solemn or sacred event.
• Vigil fasting — The act of fasting on an eve and its result; total or partial abstinence from food and drink on the day preceding a major Christian holiday, as a form of penance, spiritual purification, and ascetic preparation. This religious custom is deeply rooted in Orthodox and Catholic liturgy, being considered a personal sacrifice aimed at enhancing prayer.
• Alerted — Having been placed on alert, warned, promptly notified, or apprised regarding a danger, emergency, or structural anomaly; being in a state of high vigilance. As a past participle, it reflects the completed action of the verb 'alerta'. In a reflexive-adjectival sense, it describes a person who is worried, agitated, or panicked in the face of unexpected news.
• Antisoporific — Counteracting, preventing, or eliminating drowsiness, lethargy, and torpor; a pharmacological substance or natural stimulant compound that induces alertness, keeping the body awake by blocking receptors responsible for sleep induction. Broadly, it refers to any external stimulus or activity that boosts mental vigilance and eliminates chronic fatigue.