Читать книгу Brain Fitness for Women - Sondra Kornblatt - Страница 25

Seasonal affective disorder can range from winter blues to depression. Over 75% if those who have it are women, and the majority of them are in their twenties to thirties.⁵⁶

What causes SAD? There are several hypotheses:

 Oversecretion of melatonin in the winter,

 Lack of light, which stimulates specialized cells in the retina that directly connect the eyes to the brain,⁵⁷

 Body-chemistry problems causing the neurotransmitters dopamine and serotonin to be out of sync and thus interfere with mood, appetite, and sleep patterns,⁵⁸

 Lack of vitamin D.

If you can't move to Costa Rica from November to March, light boxes can help SAD. Check with your doctor about increasing your vitamin D as well.