Sleep is one of the most important things for the human body and brain. When you sleep, your body rests but your brain stays very active. It organizes the events of the day, stores memories, and removes waste that builds up during waking hours. Deep sleep helps the brain clean itself better and work more efficiently.
Most adults need between seven and nine hours of sleep every night. However, many people sleep less than that. Not sleeping enough can affect memory, concentration, and mood. It can also make people more anxious, tired, or even depressed. Over time, a lack of sleep can reduce judgment and performance, increasing the risk of accidents — just like being drunk.
Poor sleep can also raise the risk of dementia. To sleep better, experts recommend good “sleep hygiene.” That means putting away phones or screens before bed, going to bed and waking up at regular times, avoiding caffeine, alcohol, and heavy meals in the evening, and keeping your bedroom quiet, cool, and dark. Regular exercise also helps improve sleep and overall health. In short, better sleep means a better mind and body.
Vocabulary :
• function (verb): to work or operate properly.
• retrieve (verb): to get something back or find stored information.
• wastes (noun): materials the body needs to remove.
• impair (verb): to damage or make something less effective.
• judgment (noun): the ability to make good decisions.
• stimulant (noun): a substance that increases energy or alertness (like caffeine).
• anxiety (noun): a feeling of worry or nervousness.
• hygiene (noun): actions that keep you clean and healthy.
• moderately (adv): not too little, not too much; in the middle.
• intense (adj): strong or extreme.