Easy Brief

Mar 23, 2026 News

Domestic Health Society 🔥 65 3/23 09:43

99% of Korean Youth Lack Vitamin D Due to Indoor Lifestyle

199% of Korean youth suffer from a vitamin D deficiency crucial for bone health.
2Prolonged indoor time at schools and academies severely limits sun exposure.
3Social efforts like increasing outdoor activities and PE classes are needed.

📖 Easy Explanation

🔍 Background

Children today lack time to play outside due to their busy schedules with school and academies. This lack of sunlight has raised red flags for their bone health.

📌 Key Points

Direct sunlight is needed to produce vitamin D for strong bones; sunlight through windows doesn't work. Shockingly, 99% of Korean youth not taking supplements lack vitamin D, a severe level akin to early-stage rickets.

💡 Why It Matters

The period from infancy to age 20 is crucial for building lifelong bone foundations. Children should play outside in the sun for about 20 minutes daily to grow strong and healthy.

🔮 What's Next

Greater social awareness and changes, such as expanding school physical education classes and actively encouraging outdoor activities, will be needed to protect children's health.

📚 Glossary

구루병 (Gurubyeong)Rickets; a disease where bones become weak and bend due to a lack of vitamin D.
자외선 B (Jawoeseon B)UVB; specific sunlight wavelengths required to produce vitamin D in the skin.
IU (International Unit)An internationally accepted unit used to measure the amount of vitamins or hormones.
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