Answer:
Insufficient sleep can directly affect how a person feels during their waking hours. Examples of these symptoms include:
Slowed thinking
Reduced attention span
Worsened memory
Poor or risky decision-making
Lack of energy
Mood changes6 including feelings of stress, anxiety, or irritability
A person’s symptoms can depend on the extent of their sleep deprivation and whether it is acute or chronic. Research also suggests that some individuals are more likely to experience symptoms after a lack of sleep and that this may be tied to a person’s genetics7. Stimulants like caffeine can also mask the symptoms of sleep deprivation, so it’s important to note how you feel on and off these substances.
Explanation:
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