Light therapy is usually started in the fall and continued through spring. When you begin light therapy, your first response will show you whether you need to adjust the intensity or duration. Many people respond to light therapy within 3 to 5 days.
Psychographics is a marketing demographic method used to analyze market segmentation. (The population demography of a specific market) It relates to the lifestyles, attitudes, beliefs, buying motivation, product usage requirements, and product perceptions.
Demographic segmentation is where a market is divided up based upon demographic differences between consumers, such as age, gender, race, and income. An example of a demographic market segment is white males between the age of 45 and 55 with gross annual incomes between $75,000 and S125,000.