The Sleep-Grade Connection

Improved concentration and focus (correct)

Increased stress levels

Enhanced memory retention

Decreased motivation

Lack of sleep can increase stress levels in students (correct)

Sleep can reduce stress levels in students

Sleep has no impact on stress levels in students

Sleep and stress levels are unrelated

Sleep has no impact on memory retention

Lack of sleep can impair memory retention in students

Sleep can enhance memory retention in students (correct)

Sleep and memory retention are unrelated