Final answer:
The statement is True; carb intake is indeed increased to replenish the brain's glucose supply after stress, particularly during extended periods of stress that deplete glycogen reserves.
Step-by-step explanation:
The statement that carb intake is increased to boost the brain's glucose supply after stress is True. When stress occurs, the body's immediate energy reserves, particularly glycogen, can be depleted after several hours, particularly during prolonged stresses like illness or injury. When these glycogen reserves are no longer sufficient, the body starts to mobilize other sources of energy through the actions of glucocorticoids. These glucocorticoids stimulate gluconeogenesis to generate glucose, ensuring that the brain—being an organ with a high metabolic demand—continues to receive the energy it needs. Given that the brain uses approximately 25% of the body's glucose, and it is the main fuel for brain function, the body prioritizes glucose generation and conservation for neural use during long-term stress.