I have to admit when I have had only a couple cups of regular coffee a day, my resting HR is usually around 50 bpm, sometimes lower. I think the lowest I ever saw it was about 47 bpm.

But, when I drink Starbucks coffees, I really see a noticable increase.

For example, yesturday I was very tired in the morning, so I had 8 cups of coffee in the morning before I came to work (fresh ground in my new Cuisinart). Then at work, I felt a little drowsy, so I had a Starbucks 16oz. Mocha. An hour later, my wife stopped by, and she had a 16oz. Carmel Macchiato that she didn't want, so I drank that. She also dropped off a box of Chocolate Covereed Espresso Beans for me to snack on. So, I ate those as well. I couldn't eat the beans by themselves, so I had another 12oz. Mocha. That was about all I had to eat.

By dinner time, I was really hungry, so I had a sandwich with another cup of coffee.

By that time, my Resting Heart Rate was up to about 65 bpm, and I was bouncing off the walls of my office.

Gee, I wonder why?

A cup usually has around 130mg of caffine. You had 8+2+2+1+200mg from the beans. That's about 2000mg or 2 grams.
The lethal dosage is around 0.15g/kg. So assuming you're 75kg, that's around 11grams.
You're 1/6th of the way there, don't give up!

"For example, yesturday I was very tired in the morning, so I had 8 cups of coffee in the morning before I came to work (fresh ground in my new Cuisinart). Then at work, I felt a little drowsy, so I had a Starbucks 16oz. Mocha. An hour later, my wife stopped by, and she had a 16oz. Carmel Macchiato that she didn't want, so I drank that. She also dropped off a box of Chocolate Covereed Espresso Beans for me to snack on. So, I ate those as well. I couldn't eat the beans by themselves, so I had another 12oz. Mocha. That was about all I had to eat.

By dinner time, I was really hungry, so I had a sandwich with another cup of coffee."



I can see you really like coffee +/- 13 cups. Is there a particular type roast you prefer?

No, not really. I just happen to drink an aweful lot that day. I normally drink a few cups early in the day from my drip maker at home. Then, I "might" get a Starbucks later in the afternoon or something. But, itry not to drink to much of Starbucks. They are lots of calories with not much nutritional value.

No, I don't intend on killing myself with coffee, although I suppose it's possible.

I assume caffeine has withdrawal symptoms. I feel very tired today. Could be only 4 hours of sleep too. :D

Mmmmmmm... coffee... thanks for the thread. I'm going to make myself a pot of it now!

Koffee

I find that coffee really screws up my heart rate, pumps it up a good 10-15 beats or so. I suppose I'm just one of the genetically sensitive folks.

You mean chemically sensitive. I think caffeine pretty much will do that to just about anyone. Good thing they say it's good for the colon. If it was bad for me, I think I would be dead by now.

Hmmm coffee... I guess I am going to Starbucks on my break...

After a nice metric century I deserve to pig out alittle.

Koffee's new avatar raises my heart rate ;)

http://scholar.google.com/scholar?q=caffeine+heart+effects&ie=UTF-8&oe=UTF-8&hl=en&btnG=Search