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As we near the end of October, we approach what is commonly referred to as SAD season, a time when seasonal affective disorder (SAD) impacts many, according to Anisha Patel-Dunn, a psychiatrist and chief medical officer of LifeStance Health, an outpatient mental health company.

"Seasonal affective disorder really is a type of depression that can last on average about four to five months," says Patel-Dunn, "For most people, it's really [during] fall into the winter."

Coupled with the lack of sun, mass layoffs and fears of a recession are contributing to the intense emotions that arise during this time of year, she adds.

A few common symptoms of seasonal affective disorder are having a depressed mood for most of the day over the course of two weeks or more, lack of pleasure in doing things you used to enjoy and changes in energy, motivation, sleep or appetite, she notes.

Research shows "30 to 45 minutes of aerobic exercise four to five times a week can impact and improve mood," says Patel-Dunn.

Using a 10,000 lux light box for 30 minutes each morning has been shown to help with seasonal affective disorder, according to Patel-Dunn.