In this lab, students will determine the amount of caffeine in a beverage. Students will determine the retention time of pure caffeine. From this information, students will be able to identify the ...

But labels don't have to reveal how much caffeine the products pack. We will. We measured the amount in 27 top-selling energy drinks and shots (see table below). We bought the drinks online or at ...

You probably know too much caffeine can bring on the jitters if you drink it regularly. Too much caffeine may worsen anxiety symptoms. You might develop insomnia, nervousness, and restlessness.