seasonal affective depression

I’m just saying that not everyone is affected by it. I’d say most people are just fine. For example, in Finland that rate is 10–30% who get some symptoms without the depression. For the SAD overall, I found this

In Greenland, the northernmost territory of North America, the frequency of SAD has been found to vary from 6.9 to 11.5%, and highest in northern municipalities

So you could move to Greenland and be totally fine. Though I guess where you are coming from can affect it.