Seasonal Affective Disorder (SAD) is a medically recognized sub-type of major depression. It is characterized by abnormal mood episodes that occur at the same time of year on a regular basis. SAD is more common in the winter months, though Summer SAD has also been diagnosed. Winter Blues is the common name for sub-syndromal SAD. A typical person with SAD may experience some of the following: excessive tiredness, weight gain, social withdrawal, depressed mood, irritability, difficulty concentrating, carbohydrate cravings, and decreased libido (sex drive).
Individuals who suffer from Seasonal Affective Disorder (S.A.D.) are affected by light, which plays a major role in the secretion of melatonin. Melatonin is a natural hormone made by your body's pineal gland. This is a pea-sized gland located just above the middle of the brain. During the day, melatonin levels are barely detectable in individuals who don't suffer from S.A.D. When light hits your eye, the retina transmits impulses to your body clock, located in the hypothalamus. The hypothalamus regulates sleeping, eating, body temperature and libido. Clinical research shows that The Litebook®'s wavelength may assist in regulating the body's melatonin levels. It also boosts a feel-good neurotransmitter (serotonin), which makes you feel content and energized.
The following are the common signs that you are not getting enough bright light in the beneficial wavelengths:
• Depressed Mood
• Low Energy
• Irritability
• Difficulty Concentrating
• Carbohydrate Cravings
• Social Withdrawal
• Reduced Libido
• Trouble Sleeping
The good news is that researchers in light therapy have made great strides in recent years in understanding the impact of light on our health and wellness, and there is an increasing awareness among the general population about the importance of getting enough light.
