Considering each cup of coffee contains 100mg of caffeine.....probably not
There are between 40 and 50 milligrams of caffeine in a typical eight ounce cup of brewed black tea or green tea steeped for three to five minutes. An eight ounce cup of similarly brewed naturally decaffeinated tea contains approximately 4 milligrams of caffeine (99.6% caffeine free). The amount of caffeine in a typical cup of regular brewed coffee is between 80 and 120 milligrams.
There are 10 milligrams per centigram: 4cg = 4 x 10 = 40mg
4 times 500 of anything is 2,000 of them. 2,000 milligrams is the same as 2 grams.
1/4 tsp.
Decaffinated coffee will contain 2-4 mg/200mL caffeine.
There are 10 milligrams in one centigram. Therefore, 4 centigrams is equal to 4 x 10 = 40 milligrams.
4 milligrams
Caffeine has a stimulating affect on the heart, not the nervous system. An oral dose of 200 mg caffeine appears to decreasereaction time by approximately 4 percent within 30 minutes, approximately 15 percent in 30 to 60 minutes and 18 percent in 60-90 minutes.Therefore caffeine does not wake up the nervous system.
150 milligrams
One kilogram is equal to 1000 x 1000 = 1000000 milligrams. Therefore, 4 milligrams is equal to 4/1000000 = 0.000004 kilograms.
16.1997275 milligrams
There are 1000000 nanograms in a milligram. Therefore 4 nanograms is 0.000004 milligrams.