**Question:** If both water and food are completely withheld to a person, death usually occurs in -

A. Days
B. Hours
C. Weeks
D. Minutes

**Correct Answer:** B. Hours

**Core Concept:**

When a human being is deprived of both food and water, they eventually succumb due to the disruption of essential biological processes. Maintaining hydration and nutrition are crucial for sustaining life, as they support organ functions, cell maintenance, and overall body homeostasis.

**Why the Correct Answer is Right:**

Withholding food leads to severe malnutrition, which can result in the depletion of essential nutrients required for cellular functions, energy production, and immune system support. This, in turn, can cause organ failure and weaken the body's ability to fight infections.

Withholding water leads to dehydration, which disrupts the body's essential fluid balance, causing a decline in blood volume, osmoregulation, and electrolyte balance. Dehydration can lead to organ failure, particularly affecting the kidneys, heart, and brain, ultimately resulting in severe consequences like seizures, coma, and death.

**Why Each Wrong Option is Incorrect:**

A. Days: This is an excessively long period for complete fasting-related death, as the body can adapt to some extent over a few days through physiological adjustments.

C. Weeks: While fasting for several days can cause significant health issues, death would not occur within a week, as the body can continue to function with partial adaptations.

D. Minutes: This is an unrealistically short timeframe for fasting-induced death, as the body cannot sustain without food and water for such a short duration.

**Clinical Pearl:**

In emergency situations, such as in prolonged hunger strikes or water deprivation, providing limited nutrition and hydration through enteral or parenteral nutrition can be a life-saving intervention, preventing the progression of organ failure and ensuring the body's ability to maintain homeostasis and resist infections.