REVEAL the HEALTH EFFECTS of LIGHT
Reveal the effects of light exposure on human health
via epidemiologic data science
Do you know that
exposure to
light affects your health?
We live under the control of the biological rhythms.
Recent studies have shown that disturbances
in the biological rhythms cause various diseases.
Importantly, light exposure has a big impact on
the biological rhythms.
We actually measure the amount, quality,
and timing of light that people are exposed to,
and scientifically analyze the relationship
with various health data.
We have published many research results so far,
and this website introduces our large-scale epidemiological research.
In addition, I will also introduce interesting research
that I am involved in as a co-researcher.
PUBLICATIONS
Light Exposure in patients with Parkinson's disease
Obayashi K
Annual Metting of Japanese Scosiety of Sleep Research 2025, Jun 2025
Effect of Organic Light-Emitting Diode on Nighttime Task Performance and Melatonin Secretion: Randomized Controlled Trials
Sawaki Y., Kubo T., Yamaguchi Y., Yamagami Y., Saeki K., Obayashi K*
Chronobiol Int, (in press), Aug, 2026
Sleep Disturbance and Incident Depressive Symptoms in Patients with Glaucoma: A Longitudinal Study of the LIGHT Cohort
Yoshikawa T., Obayashi K., Miyata K., Jimura H., Saeki K., Ogata N., Kase S.
Brit J Ophthalmol, (in press), Aug, 2026
Daytime Skin Temperature and Nocturia in the Subsequent Night among Community-Dwelling Older Adults in the Cold Season in the HEIJO-KYO Study
Tamaru D., Obayashi K., Tai Y., Yamagami Y., Okumura K., Negoro H., Saeki K.
J Physiol Anthropol, (in press), Jul, 2026
暗闇
NHK Eテレ ヴィランの言い分 2026年1月
