PLEASE READ

Sad is more complicated then just sunlight it is very important the amount of light you use and the certain time of day you take it, it took me alot of research to find out that I actully had sad, light in the evening would actully make me OVER PHASE ADVANCED which makes me have extream fatigue and feel more depressed and also too much light in the morning! You have to start with 20 to 30 minites of light as soon as you wake up and always wake up at the same time and don't have any naps during the day, it is said that people with sad have sensitive body clocks then the average person not dysfunctional ones like previously thought, it can actully take 18 months for you to see sad symtoms lift and will find needing more and more light up to 2 hours of 10'000 lux and feeling more and more better within the 18 months. But if people are suffering from advanded body clocks thats a diffrent story and light theraphy needs to taken in the evenings. Very persons body clock has diffrent timing I recommend people doing some research about them because 100% of people should be responding to light therasphy at 10'000 lux if they suffer from sad! But it takes patients and it could tkae soon. After light theraphy people should avoid any bright light after it! till the next day.