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Caffeine is absorbed within 30 to 60 minutes after drinking a cup of coffee and the effect of caffeine lasts from 4 to 6 hours. Pharmacologically, caffeine acts as a central nervous system stimulator, a point that is well made by the coffee ad on TV which calls it “the think drink.” “Caffeine speeds up reaction time and improves automatic processing skills like doing arithmetic problems and proofreading,” says author Stephen Braun “But for more complicated tasks, like complex word problems, caffeine has also been shown to worsen performance.”

Anterior blepharitis affects the outside front of the eyelid, where the eyelashes are attached. The two most common causes of anterior blepharitis are bacteria (usually Staphylococcus) and scalp dandruff.

Although migraine is less active for many women during pregnancy when hormonal levels are high and more stable, migraine may begin for the first time during pregnancy, especially in the first trimester.