The effect of daylight LED on daytime cortisol concentration
- Resource Type
- Conference
- Authors
- Dai, Congshan; Li, Nuoyi; Shah, Ali Hassan; Chen, Jack; Chen, Susan; Yi, Shu; Lin, Yandan
- Source
- 2021 18th China International Forum on Solid State Lighting & 2021 7th International Forum on Wide Bandgap Semiconductors (SSLChina: IFWS) Wide Bandgap Semiconductors (SSLChina: IFWS), 2021 18th China International Forum on Solid State Lighting & 2021 7th International Forum on. :191-193 Dec, 2021
- Subject
- Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Engineering Profession
Photonics and Electrooptics
Power, Energy and Industry Applications
Photonic band gap
Mental health
Color
Light emitting diodes
Rendering (computer graphics)
Circadian rhythm
Indexes
- Language
The lack of sunlight in modern people may have adverse effects on physical and mental health. As a possible way to supply daylight exposure, daylight LED has attracted people's attention for its continuous and complete spectrum. This study compared the effect of daylight LEDs and LEDs with high color rendering index on cortisol secretion, which reflecting human alertness and circadian rhythm. The mean cortisol concentration of daylight LEDs at both CCTs was higher than that of normal LEDs. However, there are no significant effects when analyzing with change value.