Cataracts Sunlight - Videos

A lack of sunlight is associated with cognitive decline among depressed people.

NBC's Dr. Nancy Snyderman reports that kids are not getting enough Vitamin D from sunlight.

High levels of vitamin D from the sun and eating fish are associated with improved brain power later in life.

While most of us feel depressed with a lack of sunlight, some places in the world see an increase in suicides because of too much sunlight.

With skin cancer reaching epidemic levels in the United States, it's important to protect yourself from the sun.