Newsletter

Understanding the Role of Light and Melanopsin in Resetting Your Body Clock Cycle

Jeong Ki-young, President of the Korea Society for Sleep Research (Professor of Neurology, Seoul National University Hospital) In the last article we saw how a person’s biological rhythm can carry out periodic activities on its own even without external light. If a person lives in a cave or underground bunker for a long time without […]

Unveiling the Role of the Suprachiasmatic Nucleus in Controlling Circadian Rhythms: Insights from Professor Jeong Ki-young, President of the Korea Society for Sleep Research

Jeong Ki-young, President of the Korea Society for Sleep Research (Professor of Neurology, Seoul National University Hospital) The biological clock that controls the circadian rhythm is the suprachiasmatic nucleus (SCN) in the hypothalamus.This has been revealed There are two suprachiasmatic nuclei located in the exact center under the hypothalamus, and they are nerve structures smaller […]

The Uncertain Link Between Blue Light and Health: Insights from the ICNIRP Research Team

International Commission on Non-Ionizing Radiation Protection Studies have shown that the link between blue light and poor health is unclear. JV_PHOTO/Getty Images Use the blue light blocking feature to block blue light from your smartphone or laptop screen. The aim is to protect vision and eye health. However, the impact of blue light on health […]

Understanding the Impact of High Coffee Consumption on Sleep Habits in Korea

Jeong Ki-young, President of the Korean Society for Sleep Research (Professor of Neurology, Seoul National University Hospital) A man in his early 40s who works in the delivery business visited the doctor’s office, saying he was having trouble sleeping these days. He sleeps about 4 hours a day, but says he doesn’t feel sleepy during […]