Why You Can’t Sleep at Night and How to Get Rid of Insomnia

6. Alcohol

4,970 adults took part in a study at John Hopkins University. The participants told the scientists the number of days when they had drunk 4 or more drinks in one day for the past 3 months. The answers were used to calculate the average number of days when participants had drunk alcohol. The participants also claimed that they had sleeping problems.

The results showed that people who drink 2 or more times a week are often more susceptible to having sleeping problems.

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