Proof The Bible Is True

By Dr. Mercola

The loss of daylight hours during winter is a common cause of seasonal affective disorder (SAD), a type of depression that hits seasonally and lifts as spring and summer rolls back around.

The fact that SAD occurs when the days begin to darken and sunlight is at a minimum is not a coincidence. Your health and mood are intricately tied to exposure to sunlight. For example, your serotonin levels (the hormone typically associated with elevating your mood) rise when you’re exposed to bright light.

Your melatonin level also rises and falls …read more

Source: mercola