Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Chronopharmacokinetics: Circadian Rhythms and Influence on Drug Response01:15

Chronopharmacokinetics: Circadian Rhythms and Influence on Drug Response

292
Circadian rhythms are cyclic changes that are crucial in plasma drug concentrations. Various standard circadian parameters, including core body temperature, heart rate, and other cardiovascular factors, directly impact disease states and the therapeutic response to drug therapy.
The time of drug administration is an important factor to consider, as it can influence the toxic dose of a drug. For example, a study conducted by Prins et al. in 1997 examined the effects of the timing of...
292
Truncation in Survival Analysis01:09

Truncation in Survival Analysis

497
Truncation in survival analysis refers to the exclusion of individuals or events from the dataset based on specific criteria related to the time of the event. This exclusion can happen in two primary forms: left truncation and right truncation.
Left truncation occurs when individuals who experienced the event of interest before a certain time are not included in the study. This is often due to a "delayed entry" into the study where only those who survive until a certain entry point are...
497
Biological Clocks and Seasonal Responses02:45

Biological Clocks and Seasonal Responses

41.4K
The circadian—or biological—clock is an intrinsic, timekeeping, molecular mechanism that allows plants to coordinate physiological activities over 24-hour cycles called circadian rhythms. Photoperiodism is a collective term for the biological responses of plants to variations in the relative lengths of dark and light periods. The period of light-exposure is called the photoperiod.
41.4K
Assumptions of Survival Analysis01:15

Assumptions of Survival Analysis

325
Survival models analyze the time until one or more events occur, such as death in biological organisms or failure in mechanical systems. These models are widely used across fields like medicine, biology, engineering, and public health to study time-to-event phenomena. To ensure accurate results, survival analysis relies on key assumptions and careful study design.
325
Regression Toward the Mean01:52

Regression Toward the Mean

6.8K
Regression toward the mean (“RTM”) is a phenomenon in which extremely high or low values—for example, and individual’s blood pressure at a particular moment—appear closer to a group’s average upon remeasuring. Although this statistical peculiarity is the result of random error and chance, it has been problematic across various medical, scientific, financial and psychological applications. In particular, RTM, if not taken into account, can interfere when...
6.8K
Bias in Epidemiological Studies01:29

Bias in Epidemiological Studies

1.2K
Biases can arise at various stages of research, from study design and data collection to analysis and interpretation. Recognizing and addressing these biases is essential to ensure the validity and reliability of epidemiological findings.Broadly speaking, biases in epidemiology fall into three main categories: selection bias, information bias, and confounding. A more detailed description of possible biases is:  
1.2K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Shape of the association between endotoxin in school dust and children's lung function.

ERJ open research·2025
Same author

Tooth Loss and Oral Health-Related Quality of Life: A Study in a Convenience Sample from Austria.

Dentistry journal·2025
Same author

Analysis of potential health impacts of road and rail traffic noise, using noise at residential locations in Austria as an example.

Wiener klinische Wochenschrift·2025
Same author

Endotoxin exposure associated with respiratory health among European schoolchildren: The SINPHONIE study.

Pulmonology·2025
Same author

The Optimal Protective 25-Hydroxyvitamin D Level for Different Health Outcomes in Adults: A Brief Summary of Dose-Response Meta-Analyses.

Metabolites·2025
Same author

Sources, levels, and determinants of indoor air pollutants in Europe: A systematic review.

The Science of the total environment·2025

Related Experiment Video

Updated: Dec 27, 2025

Human Circadian Phenotyping and Diurnal Performance Testing in the Real World
10:16

Human Circadian Phenotyping and Diurnal Performance Testing in the Real World

Published on: April 7, 2020

8.9K

Daylight Saving Time Transitions: Impact on Total Mortality.

Michael Poteser1, Hanns Moshammer1,2

  • 1Department of Environmental Health, Center for Public Health, Medical University of Vienna, Kinderspitalgasse 15, 1090 Vienna, Austria.

International Journal of Environmental Research and Public Health
|March 6, 2020
PubMed
Summary
This summary is machine-generated.

Daylight saving time (DST) shifts can impact public health. Studies show a 3% daily mortality increase after spring DST transitions, highlighting potential health risks associated with time changes.

Keywords:
daylight saving timemorning sunlighttime series studytotal mortality

More Related Videos

A Method of Trigonometric Modelling of Seasonal Variation Demonstrated with Multiple Sclerosis Relapse Data
10:46

A Method of Trigonometric Modelling of Seasonal Variation Demonstrated with Multiple Sclerosis Relapse Data

Published on: December 9, 2015

10.9K
Collecting Sleep, Circadian, Fatigue, and Performance Data in Complex Operational Environments
08:36

Collecting Sleep, Circadian, Fatigue, and Performance Data in Complex Operational Environments

Published on: August 8, 2019

12.5K

Related Experiment Videos

Last Updated: Dec 27, 2025

Human Circadian Phenotyping and Diurnal Performance Testing in the Real World
10:16

Human Circadian Phenotyping and Diurnal Performance Testing in the Real World

Published on: April 7, 2020

8.9K
A Method of Trigonometric Modelling of Seasonal Variation Demonstrated with Multiple Sclerosis Relapse Data
10:46

A Method of Trigonometric Modelling of Seasonal Variation Demonstrated with Multiple Sclerosis Relapse Data

Published on: December 9, 2015

10.9K
Collecting Sleep, Circadian, Fatigue, and Performance Data in Complex Operational Environments
08:36

Collecting Sleep, Circadian, Fatigue, and Performance Data in Complex Operational Environments

Published on: August 8, 2019

12.5K

Area of Science:

  • Public Health
  • Chronobiology
  • Environmental Health

Background:

  • Many countries implement daylight saving time (DST) to maximize daylight during work hours and conserve energy.
  • Reevaluation of DST is ongoing due to unproven economic benefits and emerging concerns about social and health impacts.

Purpose of the Study:

  • To investigate the effects of DST on total mortality in a general population.
  • To provide evidence for the ongoing discussion regarding the health consequences of DST.

Main Methods:

  • A time series study analyzing daily total mortality data from Vienna, Austria (1970-2018).
  • Poisson regression modeling was used, controlling for seasonality, long-term trends, temperature, humidity, and day of the week.

Main Results:

  • A significant increase in daily total mortality (approximately 3% per day) was observed during the week following the spring DST transition.
  • No significant increase in mortality was noted after the fall DST transition.

Conclusions:

  • The spring transition of DST is associated with a notable increase in daily mortality.
  • This finding suggests a potential causal link between the shift in time scheme and adverse health outcomes.