【轻松英文阅读】咖啡因对大脑的危害

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According to a recent study, brain development in teenagers can be delayed by over-consumption of caffeine. Teenage brains need solid sleep for their development. Caffeine can prevent teenagers from getting the sleep they need.

 

During deep sleep, networks in the brain are optimized¹ and made stronger. This process of optimization² is inhibited³ when teens are not able to experience deep sleep. This comes at a crucial time when the teenager’s brain is maturing very rapidly and scientists worry that it could have a long-lasting impact.

 

And it doesn’t take much, either. Just three to four cups of coffee a day can be enough to interfere⁴ with the delicate sleep cycle.

 

The experiment was carried out on 30-day old rats. As expected the caffeinated rats did not sleep well and had poor neural⁵ connections. Moreover, their behavior changed; they became more introverted and less curious compared to rats that did not receive caffeine.

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