Ultraviolet light. Light therapy boxes should be designed to filter out harmful ultraviolet (UV) light, but some may not filter it all out. UV light can cause skin and eye damage. Look for a light therapy box that emits as little UV light as possible. If you have concerns about light therapy and your skin, talk to your dermatologist.
The reason behind it has to do with the pretty, little planet called Venus. She will be entering her rare retrograde phase on July 25 th, 2015. Astrologically, a Venus Retrograde period is one of the most important times for matters of love. It happens every 18 months to two years and every time Venus does her backwards dance, relationships end up being the topic on everyoneâs minds. Karma also plays into this period, which makes it all the more special.
A year on Venus is the time it takes to orbit the Sun. That's about 225 Earth days (224.7 Earth days to be more exact). Venus's rotational period (sidereal day) is 243 Earth days, and it is the only planet that has true retrograde rotation, spinning very slowly clockwise as seen from above (North of) the plane of the solar system.