Occupational and environmental medicineJul 30, 2026

Patterns of Artificial Light at Night Before Sleep and Their Links to Sleep Problems in Hong Kong Shift-Working Nurses and Daytime Office Workers

Circadian Biology Weekly Brief ↗PubMed ↗DOI ↗

Updated Aug 3, 2026

Abstract

Actigraphy measured pre-sleep artificial light at night (ALAN) exposure patterns among Hong Kong shift-working nurses and daytime office workers.

ALAN exposure patterns were analyzed on non-workdays.
Associations were explored between ALAN exposure and sleep parameters.
Differences in sleep quality or duration may be influenced by ALAN exposure.

Simplified

Full Text

Full text is available at the source.

View Full Text ↗

Funding

Competing interests

Competing interests: None declared.

PubMed

Weekly Circadian Biology Brief

You found one interesting study. We’ll send the next 7.

Get 7 new circadian biology papers each week, explained in plain English with direct links to the originals.

What Lands in Your Inbox Each Week:

📚7 fresh studies
📝plain-language summaries
✅direct links to original studies
🏅top journal indicators
📅weekly delivery
🧘‍♂️always free

Recent issues from the circadian biology brief

A blood test can now estimate your internal clock time using just 60 proteins

2 days ago7 studies

Your body clock controls liver fibrosis — and scientists just found the on/off switch

1 week ago7 studies

Night shift workers' metabolomes fall out of sync — and glucose pays the price

2 weeks ago7 studies

80% of FDA-approved drug targets show clock-dependent activity — timing may be everything

3 weeks ago7 studies

Sleeping late on weekends is independently linked to higher cardiovascular disease risk

4 weeks ago7 studies

A smartphone app cut mood episode recurrence 3.4x in people with depression and bipolar disorder

5 weeks ago7 studies

Morning cancer immunotherapy linked to 49% vs 40% disease control rate in 969 patients

6 weeks ago7 studies

Timing cancer treatment before 3pm nearly doubled survival in lung cancer patients

7 weeks ago7 studies

Male mice lived 12% longer when they ate only during an 8-hour window at night

8 weeks ago7 studies

Emergency doctors had 67% higher odds of chronic pain when working evening shifts vs. morning shifts

10 weeks ago7 studies

explore the archive

See more issues from the circadian biology brief