Not even global pop star Adele is immune to SAD: she once told The Hollywood Reporter of her decision to live in sunny, ...

Seasonal affective disorder isn’t just about being sad in winter. It’s a type of depression that has to do with the lack of sunlight in late fall and winter.

Our favorite SAD light therapy lamp, the Verilux HappyLight Luxe, is on sale right now during Amazon’s October Prime Day, just in time for gloomier weather. Best Tested.

The light therapy you are asking about, known as bright light therapy, has proven beneficial for many people with winter-onset SAD. It involves daily exposure of 30 to 40 minutes to a light box.

Avoid UV light which is ineffective for SAD and can lead to sunburn or skin cancer. And don’t forget to eat some fish to boost your vitamin D levels too. Depression ...