Evidence on light therapy as preventative treatment for people with seasonal effective disorder is limited. The decision for or against initiating preventive treatment of sad should be strongly based on patient preferences, he says. "I can see that especially if you're not feeling great about yourself and your place in the world, that it does make it harder to go out"
How should you treat Seasonal Affective Disorder? Would we all be happier if we hibernated? And why does Stephen think football fans have an easier time?