Excessive daytime sleepiness can caused by some sleep disorders such as Insomnia, Epilepsy, Narcolepsy, Shift Work Sleep disorder, Obstructive Sleep Apnea etc. To cure excessive daytime sleepiness Modafinil is a prescribed medication. It is a eugeroic group of drug that promotes wakefulness and helps users to stay active during the day. Modafinil works by affecting certain neurotransmitter in the brain and the result of affecting those neurotransmitter promote wakefulness and restore the natural sleep cycle of a person. That is how Modafinil eventually reduce the tendency of daytime sleepiness. To buy Modafinil products at 50% discount visit Mymodalert.