How Well Do You Really Understand Ultraviolet Radiation?

Ultraviolet (UV) radiation, an often discussed but not fully understood "invisible killer," is everywhere, and it silently affects our health, especially our skin, posing a significant threat.

First, it's crucial to understand that UV radiation is not a single type of light but rather a range of electromagnetic radiation with wavelengths between 100 and 400 nanometers. Based on wavelength, UV radiation is categorized into three main types:

1. UVA(Included UV-TMAX) (315-400 nanometers): Also known as long-wave UV, it has the strongest penetration power, reaching the deep layers of the skin, accelerating skin aging, causing wrinkles, pigmentation, sagging, and even inducing skin cancer.

2. UVB (280-315 nanometers): Also known as medium-wave UV, it has weaker penetration power, mainly affecting the surface layer of the skin, causing sunburn, redness, and peeling. It is also a major contributor to skin cancer.

3. UVC (100-280 nanometers):Also known as short-wave UV, it has the weakest penetration power and is mostly absorbed by the ozone layer. It poses the most severe threat to human health. However, due to the protection of the atmosphere, UVC barely reaches the ground, so we don't need to worry about it in our daily lives.

What Poses the Greatest Threat to Our Skin?

Although UVC is the most harmful, its inability to reach the ground means that UVA and UVB are the ones that truly affect our daily lives. **UVA, due to its strong penetration power, causes the most significant long-term damage to the skin, accelerating aging and even leading to skin cancer.** UVB mainly causes acute reactions like sunburn.

Therefore, in our daily lives, we should take proactive sun protection measures, such as applying sunscreen, wearing hats, and wearing long-sleeved clothing, to minimize UV exposure and protect our skin health.

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Understanding the dangers of UV radiation and taking appropriate sun protection measures is key to safeguarding our skin health and avoiding the negative effects of sunlight.