Your immune system weakens: The immune system becomes compromised, and suddenly you become more susceptible to not only some of the afflictions mentioned earlier, but also to the cold and flu bugs going around.
Your mood plummets: Have you ever gotten a poor night’s rest and woken up feeling agitated and irritable? That’s normal. The good news is that upon returning to your normal sleep schedule, your mood should improve.
Your memory weakens: A study found that sleepy test subjects’ neurons responded slowly, fired more weakly, and their transmissions dragged on longer than usual.
You gain weight: A study showed that women who got 5 hours or less of sleep night gained 2.5 more pounds than those who slept soundly every night, and their risk of becoming obese was 15 percent higher.
You have more health risks: Lack of sleep has been linked to a higher risk of diabetes, Alzheimer’s, cancer, and heart problems.