LONGEVITY with Nathalie Niddam #338: How the Sun ACTUALLY Impacts Skin Aging and Cancer Risk: Skin Cancer Controversies, Sun Safety Secrets, and Anti-Aging Breakthroughs With Teo Soleymani, MD
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May 27, 2025 
In this engaging discussion, Dr. Teo Soleymani, a double board-certified dermatologist, unpacks the complexities of sun exposure and its impact on skin health. He reveals the crucial balance between enjoying sunlight for vitamin D and protecting against skin cancer. From understanding the nuances of melanin and UV damage to myths surrounding sunscreen, he provides practical advice for safe sun practices. Dr. Soleymani also highlights advancements in supplements like nicotinamide for cancer prevention and explores innovative alternatives to traditional sunscreens.
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Genetics Over Sun in Melanoma
- Most life-threatening melanomas are not caused by sun exposure and often arise on sun-protected skin.
- Genetics play a dominant role, making sun avoidance less protective against metastatic melanoma than commonly believed.
Balance Sun Exposure
- Avoid sunburns as they indicate skin damage signaling that the first layer of skin was destroyed.
- Practice moderation by not overexposing skin while avoiding excessive sun avoidance or compulsive tanning.
Childhood Sunburns and Cancer Risk
- DNA damage from childhood sunburns is largely repaired, so early burns don't strongly predict melanoma risk.
- Genetic predisposition and lifestyle continuity into adulthood influence skin cancer risk more than childhood sunburns.