4. Expose Yourself to Light
In the winter, the sun’s rays aren’t strong enough in the northern half of the United States for adequate exposure for filling up our vitamin D levels naturally. When this decrease in vitamin D and natural sunshine occurs, it can cause a major seasonal depression called Seasonal Affective Disorder (SAD).
To help combat this and prevent it from happening, you need to expose yourself to as much light as possible. Light therapy, a treatment option for SAD sufferers, exposes you to natural light, using a device called a light box for at least 30 minutes per day. Another option is using a “dawn simulator”, a device which uses a timer-activated light to mimic the sunrise, which stimulates the body’s clock.