Lighting
How to Treat Seasonal Affective Disorder (SAD) at Home: Light Therapy, Day-lighting, and More
...Melatonin: The 'sleep hormone.' Less light in the morning can lead to an overproduction of melatonin, making a person feel lethargic and sleepy.
Serotonin: The 'feel-good' neurotransmitter. Reduced sunlight exposure can cause a drop in serotonin levels, which is directly linked to depressed mood.
For building professi...