Weaken the Conclusion on Energy Drinks and Cognitive Function

Medium Weaken Undermine Argument

In a recent study on dietary habits, researchers found that individuals who consume energy drinks more than three times a week tend to perform poorly on standardized cognitive tests. The researchers concluded that regular consumption of energy drinks likely harms cognitive function.

However, this conclusion ignores various factors that could influence cognitive performance, such as overall lifestyle, nutritional intake, and pre-existing health conditions.

Which of the following, if true, would most seriously weaken the researchers' conclusion?

Many of the participants in the study were also found to have poor dietary habits unrelated to energy drink consumption.

Energy drinks contain ingredients that are scientifically proven to enhance cognitive function.

Individuals who score poorly on cognitive tests are more likely to switch to energy drinks to boost their performance.

A majority of energy drink consumers report feeling more alert and focused after consumption.

Some individuals consume energy drinks as a substitute for obtaining enough sleep for cognitive recovery.

Hint

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