Frequently Asked Questions
How much sun exposure do I need?
10-30 minutes of midday sun, several times weekly, for most people. Skin type affects duration needs.
Can I get vitamin D through windows?
No, glass blocks UVB rays that produce vitamin D. You need direct exposure or supplements.
What about skin cancer risk?
Burning is the main risk. Brief, controlled exposure without burning is generally safe and beneficial. Don't overdo it.
Are light therapy lamps as good as real sun?
They help with mood and circadian rhythms but don't produce vitamin D. They're useful when natural sun isn't available.
When is the best time for sun exposure?
Morning sun helps set circadian rhythms. Midday sun produces most vitamin D. Evening sun is gentler.
How do I balance benefit and risk?
Know your skin type, avoid burning, get moderate regular exposure rather than occasional intense exposure.
