So, as you have learned from my previous post SAD can be caused by the lack of sunlight we receive in a day. Without receiving sunlight our bodies fail to produce the hormones we need to feel awake and alert. When your body doesn't receive these signals from the sun it can result in feeling tired and moody. So between the consecutive cloudy days that makes it impossible to expose our selves to natural sunlight and our hectic days that leave us stuck in class or the library, how are we suppose to over come this? The answer...a light box. It's drug free and can replace the same benefits that sunlight provides. This daylight replication is inexpensive and only needs to be used for about thirty minutes per day (recommended to be used in the morning). All you do is plug it in and sit in front of it and allow the  bright shining light to work its magic.