This Won't Hurt A Bit
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What does caffeine do to your body? 03:58

Every person makes a chemical called adenosine throughout the day. As it builds up in your body, it makes you sleepy. The caffeine molecule displaces the adenosine, which is why you’ll feel more awake after consuming caffeine.


How long does it take for caffeine to take effect in your body? 04:19

It takes around 15 minutes. The peak effect is within about one hour. The caffeine molecules go through and affect your whole body, but especially your brain.


How can someone reduce making errors while working night shifts? 07:03

Drinking caffeine during a night shift has proven to reduce errors on the job. This is why there’s always, always a pot of coffee in the ER— although, it may not be good coffee.


What does caffeine do within your body? 09:28

It goes to your heart muscles and triggers the release of chemicals that help with muscle contraction. If you aren’t a regular caffeine drinker, it can raise your blood pressure. This effect goes away with daily users. Overall, small to moderate doses may decrease your chances of a heart attack or stroke— by association.


How much caffeine is in some foods and beverages? 11:09

A Hershey’s chocolate bar has 9 milligrams of caffeine. Iced tea has 15 to 20 milligrams. A standard diet Coke or Pepsi and an espresso shot has about 40 milligrams. An 8 ounce can of certain energy drinks have standardly 80 milligrams of caffeine. A standard 8 ounce cup of coffee has about 100 to 200 milligrams of caffeine.


What is the most dangerous way to consume caffeine? 12:21

By pure caffeine powder. 1 teaspoon has 3,200 milligrams— which is approaching the lethal dose. This is equivalent to 10 to 20 cups of coffee in 1 little teaspoon.


What is the recommended maximum of caffeine? 12:52

The recommended maximum is around 400 milligrams. The toxic amount in adults is 10 to 20 grams, the equivalence of about 100 cups of coffee.


Are there other uses of caffeine in the medical field? 15:59

It’s used to treat headaches— not ones caused from caffeine withdrawal. They help with tension headaches and migraines. When you add caffeine with aspirin or Tylenol, it’s more effective than just the medicines alone.


Is caffeine safe for pregnant women? 17:32

Based off of expert opinions of association, most say that consuming more than 200 milligrams or less of caffeine per day is safe. That’s about 1 cup of coffee, depending on size. It would be difficult to conduct a study on pregnant women.


What happens when you have too much caffeine? 19:59

There are many negative side effects of consuming too much coffee. Some say that their hearts began to beat irregularly and faster, their skin felt like it was trying to crawl off of their body, people began to feel anxious and agitated, and other experiences are revealed.

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