Related Experiment Video
Updated: Aug 24, 2026

Neutrophil Lifespan Extension with CLON-G and an In Vitro Spontaneous Death Assay
Published on: May 12, 2023
Death takes a raincheck
Judith A Skala1, Kenneth E Freedland
1Department of Psychiatry, Washington University School of Medicine, St. Louis, MO 63108, USA. skalaj@bmc.wustl.edu
Objective:
To review the research literature on temporal variation in mortality rates around symbolically important occasions.
Methods:
Qualitative literature review.
Results:
Since the early 1970s, at least 18 studies have investigated whether death rates increase or decrease before, during, or after symbolically important occasions such as holidays and birthdays. Some studies but not others have found modest evidence of temporal effects. Methodological issues have raised questions about most of the positive findings. None of the studies provides any direct evidence that a psychophysiological mechanism enables people to postpone or hasten their own death.
Conclusion:
Research over the past 3 decades has failed to provide convincing evidence that psychological phenomena such as "giving up" or "holding on" can influence the timing of death.
Related Concept Videos
Kubler Ross's Stages of Dying
In denial, individuals reject the reality of their condition, often thinking, "This isn't true; I feel fine," as a way to protect themselves from emotional distress. Anger...
Overview of Cell Death
Cell death was observed in the early 19th century, but there was no experimental evidence to prove it. In 1842, Carl Vogt first discovered cell death in a metamorphic toad; however, it was not termed ‘cell death.’ Scientists discovered different cell death pathways only in the 20th century...
Ending Relationships
Life Tables
Bonanno's Theory of Grieving
Resilience
The resilience...
Lethal Alleles
Lucien Cuénot discovered lethal alleles in 1905 while studying the inheritance of coat color in mice. The agouti gene is responsible for the color of the coat in mice. This gene codes for an agouti-signaling protein, which is responsible for melanin distribution in mammals. The wild-type allele gives rise to gray-brown coat color in mice, while the mutant allele gives rise to yellow coat color. In addition to coat color, the agouti gene is associated with the yellow...

