PEORIA, Ill. -- This freezing weather has many people down for more reasons than one.
Local health professionals said they are seeing more cases of depression this year than usual.
They say it may be linked to seasonal affective disorder.
The disorder can be caused by lack of sunlight.
Symptoms include depression, fatigue, and lack of energy.
Experts added that those experiencing these symptoms can treat their depression by exposing themselves to more sunlight, exercising, and eating more carbohydrates.
"Sitting in a hole or really ignoring it is not going to do something," said Psychotherapist, Dr. Joy Miller. "The help is very very simple. When we talk about light boxes or light bulbs, you can go to any store or hardware store and get a high frequency bulb."
Doctors said the levels of depression vary.
Women are more likely to experience the disorder than men.