Valkee brain stimulation headset gives the needed natural light exposure Effective: In field tests, Valkee users reported increased energy, reduced carbohydrate cravings and a reduced need for excess sleep. In clinical trials, 9 of 10 people with severe seasonal symptoms experienced total relief within 4 weeks - a revolutionary result. Symptoms included anxiety, reduced cognitive performance and tiredness. Only 8-12 minutes a day needed: 8-12 minutes is enough to have the needed daily light exposure and the desired health effect. With the traditional bright light, treatment time is suggested at least 30 minutes and preferably 1 hour per day, with the need to sit in close proximity to the therapy lamp. Focused Bright light has shown efficacy in various mood swings from PMS to job stress, and is a widely-accepted de-facto treatment for winter blues. The brain has photosensitive areas that react differently to the lack of light. Our eyes are not the most effective route to deliver light to the brain: the ear canal, where the skull at its thinnest, is the most effective route to direct light to where it is needed. Portable and always with you You can use Valkee wherever works best for you. Due to its small size, you can use it in the morning, during your commute or at work. It travels with you like a cell phone and mp3-player. Natural and safe Valkee increases the amount of light received by the brain to a natural level when there is not enough light. It is a safe and natural way to charge yourself.