The truth behind Blue Monday and Seasonal Affective Disorder (SAD) 

The third Monday in January is often referred to as “Blue Monday,” sometimes described as the saddest day of the year. While there’s no scientific evidence that one specific day is more depressing than another, many people do experience lower mood, fatigue or loneliness during the winter months. And that experience is very real. 

Shorter daylight hours, cold weather, post-holiday stress and financial pressure can all add up. For some, this time of year brings a sense of isolation or low energy that feels hard to shake. Blue Monday has become part of our cultural conversation not because it’s scientifically accurate, but because it reflects something many people recognize: winter can be tough. 

The good news is that small, supportive changes can help ease the winter blues. Creating a comforting space at home, spending time outdoors during daylight hours and finding ways to stay connected (even online) can make a difference. Creative activities, gentle movement and realistic routines can also help support mental well-being during colder months. 

For some people, symptoms go beyond the typical winter slump. Seasonal Affective Disorder (SAD) is a form of depression that usually begins in fall or winter and improves in spring. It can include ongoing fatigue, changes in sleep or appetite, low mood, difficulty concentrating and withdrawing from activities or people you normally enjoy.  

With SAD, you might notice: 

• Ongoing fatigue or low energy 

• Sleeping more (or trouble sleeping) 

• Changes in appetite or cravings 

• Weight gain 

• Feeling sad, hopeless or irritable 

• Difficulty concentrating 

• Pulling away from people or activities you usually enjoy 

SAD is linked to changes in daylight and how our brains respond to light. Family history may also play a role. If these symptoms return each year, affect daily life, and ease with the change of seasons, it’s important to talk to a healthcare provider. SAD is treatable and supports like counselling, medication or light therapy may help when guided by a professional. 

If winter feels heavier than usual, you don’t have to manage it alone. 

CMHA Muskoka–Parry Sound Programs & Supports
CMHA Muskoka–Parry Sound provides a wide range of mental health and addiction programs and supports for individuals, families, and communities across our region. Our services focus on recovery, harm reduction, crisis support, case management, housing support, and community connection—meeting people where they are and supporting their wellbeing with dignity, compassion, and respect.

Get Support or Learn More
To learn more about our programs or how to access support, contact your local CMHA Muskoka–Parry Sound office. If you or someone you know needs immediate mental health support, help is available through local crisis services.

If you or someone you know is in crisis, 24/7 support is available by calling our Crisis Line at 1-800-461-5424.