The Dream Bigger Podcast Dr. Loretta, Dermatologist & Expert on Aging: 4 Factors Responsible for Aging, Difference Between UVA Rays and UVB Rays, Aging From Blue Light, Correcting Hyperpigmentation, Retinol 101, Impact of Hot Yoga on Skin and Anti-Aging Tips
Mar 18, 2020
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Pioneering UVA Research Anecdote
- Dr. Loretta began her dermatology journey researching UVA's effects on human skin in 1975 at Harvard.
- Early studies even involved sensitizing patients to show UVA's damaging effects, highlighting its risks.
UVA, UVB, and HEV Effects
- UVA rays deeply penetrate skin causing aging and pigmentation, while UVB primarily causes sunburn and superficial cancer.
- High Energy Visible light (HEV), or blue light from screens, damages skin more profoundly than UVA, causing redness and hyperpigmentation.
Sunscreen Use for HEV Protection
- Apply broad-spectrum sunscreen protecting against UVA, UVB, and HEV every morning for optimal skin protection.
- No need to reapply indoors every two hours; avoid screen light at night to support skin and circadian rhythm health.