Get the Jitters with Caffeine

Caffeine can be a very happy thing. It can keep you going, keep you alert, and keep your focused. In terms of psychoactive substances, it's the most popular in the world, with 80% of adults consuming it every day. We take it as pills and in our beverages, especially the beloved coffee. A cup of coffee can have anywhere between 50 to an excess of 400 milligrams of caffeine in it.

As a general rule, 400 mg of caffeine is jut fine for adults. That's about four 8-ounce cups. Some people can get away with a whole lot more, and some people get a little caffeine overdosed with less. You know you've had too much caffeine when you're jittery, anxious, dizzy, irritable, having gastrointestinal discomfort, muscle tremors, brachycardia (fast heartbeat), or insomnia. How quickly you get to these symptoms is based on your liver, your genetics, your medical conditions, and your brain.

That's the bad of caffeine, so what's good about our most commonly used stimulant? Caffeine can boost your metabolism, potentially aiding in fat burning. Since it stimulates the nervous system, regular caffeine use over the long term may help prevent of postpone dementia or Alzheimer's disease. These effects were seen most in coffee drinkers! Speaking of memory, caffeine intake may improve cognitive function and help reduce forgetfulness.

So, drink up, coffee lovers! Here's further proof that coffee is not going to kill you.