We are moving into winter, and daylight savings time has come and gone. If you are sensitive to light, you may well be having less energy, have a low mood, trouble with mental acuity, and many other symptoms of depression. If you realize that this is true for you every fall and winter, you most likely have Seasonal Affective Disorder, or SAD. Although some people find they feel worse in the summer and need to wear sun glasses, most of us effected by light changes and shorter days experience it more in fall and winter. Some of the symptoms that are easily noticed in our selves are craving carbohydrates and not wanting to be social.
The good news is that this is all pretty easy to fix: use a light box. Figure out a routine in your daily life so that you can be in front of a light box for whatever period of time you need. You can be working at a desk or walking on a treadmill; there are different sizes of light boxes that suit all these activities. There are even light box visors that allow you to move around doing whatever you like while you get your light.
Your medical doctor or a psychotherapist can put you in touch with reputable companies that sell light boxes. Learn how they work and get started. Most people get results in 1 to 3 days. Good Luck!