This time of year can be tough for many people. There’s a long-upheld belief that January is the worst month of the year, but for me and others like me, February is far worse. And last year, because of the utter greyness of the weather, it was awful.
Many people experience changes in mood, energy levels, and overall wellbeing during winter. The desire to hibernate is real. But whereas for some these shifts are an inconvenience, for others they signify the deeper struggle that is Seasonal Affective Disorder (SAD). The condition affects millions of people worldwide and has a profound impact on the mindset, influencing positive thinking, motivation, and cognitive abilities.
Personally speaking, it is normally incredibly hard to come by motivation and drive in late January through February. I can’t tell you how many times I’ve sat down to complete projects and failed to progress. My mental processing just isn’t there in February and it is normally all I can do to get podcast shows out on time and to do my day job.
With that in mind, I thought it’d be a good idea to take a look at SAD and how it can impact mental functioning, and why it’s important not to beat yourself up if you’re not able to progress things in your life how you might wish just at the moment.
What is Seasonal Affective Disorder (SAD)?
Seasonal Affective Disorder is a form of depression that follows a seasonal pattern, typically emerging in the autumn and worsening during the winter months before subsiding in the spring or summer. For me, it tends to rear its ugly head in mid to late January and last through until late February or early March.
While the exact causes are not fully understood, research points to a strong link between reduced sunlight exposure and disruptions in the body’s internal processes. So when the weather is grey and murky for days or weeks on end, like it has been recently, that’s a bad thing.
Common symptoms of SAD include: persistent low mood and feelings of hopelessness; loss of interest in activities once enjoyed; increased fatigue and unrestful sleep; difficulty concentrating and making decisions; cravings for carbohydrates; and social withdrawal and isolation. Which is all pretty crap.
The Physiological Effects of a Lack of Sunlight
Sunlight plays a crucial role in regulating various bodily functions, including the production of hormones and neurotransmitters that affect mood and cognition. The absence of sufficient sunlight in winter months disrupts these natural processes, leading to several physiological changes:
1. Disruption of Circadian Rhythms
Our internal biological clock, known as the circadian rhythm, relies on sunlight to regulate sleep-wake cycles, hormone production, and metabolism. Reduced daylight exposure in winter can throw off this natural rhythm, leading to difficulties in sleeping, increased lethargy, and an overall sense of imbalance.
2. Decrease in Serotonin Levels
Serotonin, often referred to as the “happiness neurotransmitter,” is essential for maintaining a stable mood. Sunlight helps stimulate serotonin production, which explains why many people feel more energetic and uplifted in the summer. In winter, with diminished sunlight exposure, serotonin levels drop, contributing to feelings of sadness, anxiety, and reduced motivation.
3. Increase in Melatonin Production
Melatonin is the hormone responsible for regulating sleep. The body produces more melatonin in response to darkness, which is why we naturally feel sleepier at night. During winter, longer nights and overcast days cause melatonin production to surge, making people feel excessively drowsy and sluggish throughout the day.
4. Vitamin D Deficiency
Sunlight is a primary source of Vitamin D, a vital nutrient that supports immune function, bone health, and brain activity. Low levels of Vitamin D have been linked to depression and cognitive decline. During the darker months, many individuals experience Vitamin D deficiencies, exacerbating symptoms of SAD.
How SAD Impacts Positive Thinking and Motivation
With the physiological changes brought on by SAD, it’s no surprise that the condition significantly impacts one’s ability to maintain a positive mindset and stay motivated. The combination of reduced serotonin, excessive melatonin, and disrupted circadian rhythms creates a cycle that makes it difficult for those affected to break out of a mental slump.
Low serotonin levels and prolonged periods of darkness contribute to an increased tendency toward negative thinking. Those of us with SAD often experience feelings of hopelessness and self-doubt, making it challenging to find optimism or believe in our ability to make positive changes.
We can also suffer from lack of energy and drive. Motivation is directly linked to energy levels, and the increased melatonin production and decreased serotonin activity result in fatigue, making it hard to summon the energy needed to pursue goals or engage in productive activities. Even tasks that once felt easy can seem overwhelming.
SAD doesn’t just affect mood, however, it also impacts cognitive function. Many people with SAD report difficulty concentrating, brain fog, and slower information processing. These cognitive impairments make it challenging to plan ahead, make decisions, and take action on important changes in life. They make it hard to even carry out day to day work.
The combination of low energy, negative thinking, and cognitive struggles makes it particularly difficult for individuals with SAD to engage in long-term planning. Whether it’s setting goals for the new year, considering career changes, or adopting new habits, winter depression can sap the mental clarity and motivation necessary for meaningful change.
Give Yourself Grace
So what’s my overall message? Well, whether or not you suffer from SAD, chances are that you’re not at your best just at the moment. And if that’s the case, don’t beat yourself up about it.
Longer days and more sunlight are on the horizon, with every week that passes seeing about half an hour more daylight per day. It will soon be spring and you will soon be feeling more like yourself. And you can soon start tackling the things in life that you want to address with renewed energy and optimism.
