What effect does caffeine have on metabolism pregnancy?
Caffeine is a stimulant that enters the bloodstream approximately 15 minutes after consumption. It causes the pituitary gland to instruct the adrenal glands to secrete adrenaline and, as a result, caffeine slightly increases both blood pressure and heart rate. It is also a diuretic, which means it stimulates urination and depletes the body of fluid. The caffeine content of a cup of coffee or tea varies considerably, depending on the serving size, the method of preparation, and even the type of coffee bean or tea leaves used. Chocolate (especially milk chocolate) and cocoa also contain caffeine, although at low levels. About one hour after consumption, the effects of the caffeine have ceased, your raised blood sugar levels (caused by adrenaline) have dropped again and you start to crave another shot of stimulant. You may also feel a bit weary due to the diuretic, or draining, effect, which compounds the feeling of needing another dose of caffeine.
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