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None is ideal but a pregnant woman should only have one 12oz surviving of caffeine a day.
Caffeine increases your blood pressure and heart rate. It stimulates the cardiovascular system. If too much caffeine is present, it can stimulate the heart to the point of ventricular fibrillation, which can lead to rapid cardiac arrest and death. It is very difficult to overdose on caffeine using coffee, but caffeine pills are easy to overdose on and deaths have been reported from caffeine pills. They should be used with caution. One or two of the average caffeine pill should be enough for most people to get a coffee-like buzz.
A lab should get an hour to a half hour a day
your two year old should get 500 mg of calcium a day
947 a day
3,000 kilometers
3 cups a day
1 hour a day should suffice
An eleven year old boy should have 2,300 mg a day
About 2 litres a day.
$50 000 a day
Alot