Early morning coffee drinkers should consider adjusting their schedule to better optimize their caffeine intake.

习惯清晨喝咖啡的人应该考虑调整一下时间，以进一步优化咖啡因的摄入。

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Many supposed risk factors, for example alcohol consumption, smoking and caffeine intake, remain controversial or unconfirmed.

很多推测的危险因素，如酒精消费、吸烟及咖啡摄入，尚存争议及不确定因素。

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Understanding the role of coffee as a protective factor has been growing, as scientific studies show that caffeine intake is associated with a lower risk for AD.

对咖啡在预防AD方面有积极影响的理解在加深，其实，定时定量地吸收一些咖啡因可以减少患ad的几率。

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Dollar says that although he recommends limiting caffeine intake, other lifestyle habits are more damaging to your body.

CNN: Caffeinated moms drink up to keep up

Government advice is that pregnant women should be careful about their caffeine intake from all sources because it may effect the birth weight of their baby.

BBC: Coffee 'increases miscarriage risk'

The higher your intake of caffeine, the more likely you are to suffer from severe withdrawal symptoms, such as headaches, when denied the ingredient, according to experts.

CNN: Vital Signs health tips