Should I wear sunscreen when viewing sunlight in the morning?

Dr. Andrew Huberman does not typically use sunscreen when viewing morning sunlight. He mentions that he doesn't apply sunscreen when the sun is low in the sky during the morning 1. Instead, morning sunlight exposure is encouraged without sunglasses to optimize benefits for your circadian rhythms, including facilitating a cortisol peak that enhances wakefulness and helps set nighttime sleep timing 2 3. Therefore, while sunscreen is crucial for protection during intense midday sun exposure, Dr. Huberman suggests it's less necessary in the morning when the sun is not as intense.