Related Experiment Video
Updated: Aug 8, 2026

12:24
Quantifying Yeast Chronological Life Span by Outgrowth of Aged Cells
Published on: May 6, 2009
Ageing, information and the magical number seven
1Department of Pathology, Lancaster Moor Hospital, UK.
Medical Hypotheses
|November 1, 1992
Summary
Information theory concepts predict human aging and mortality rates using a novel equation. This model also explains increased infection severity from delayed microbial exposure, suggesting
Area of Science:
- Biophysics
- Information Theory
- Gerontology
Background:
- Human aging and mortality patterns are complex.
- Understanding the underlying biological mechanisms is crucial.
- Information processing may play a role in aging.
Purpose of the Study:
- To apply information theory to model human aging.
- To derive an equation predicting mortality rates.
- To investigate the link between information processing redundancy and disease severity.
Main Methods:
- Utilizing principles from information theory and general systems.
- Developing a mathematical equation based on information system properties.
- Analyzing observed mortality data.
Main Results:
- A derived equation accurately predicts old-age mortality rates.
- The equation also predicts increased infection severity with delayed microbial exposure.
- Observed redundancy in human information processing is sevenfold.
Conclusions:
- Information theory provides a predictive framework for human aging.
- A redundancy parameter suggests 'seven' may be a fundamental biological constant.
- Delayed exposure to microorganisms impacts disease severity across the lifespan.
Related Concept Videos
Replicative Cell Senescence
Replicative cell senescence is a property of cells that allows them to divide a finite number of times throughout the organism's lifespan while preventing excessive proliferation. Replicative senescence is associated with the gradual loss of the telomere — short, repetitive DNA sequences found at the end of the chromosomes. Telomeres are bound by a group of proteins to form a protective cap on the ends of chromosomes. Embryonic stem cells express telomerase — an enzyme that adds the telomeric...
Replicative Cell Senescence
Replicative cell senescence is a property of cells that allows them to divide a finite number of times throughout the organism's lifespan while preventing excessive proliferation. Replicative senescence is associated with the gradual loss of the telomere — short, repetitive DNA sequences found at the end of the chromosomes. Telomeres are bound by a group of proteins to form a protective cap on the ends of chromosomes. Embryonic stem cells express telomerase — an enzyme that adds the telomeric...
The Effect of Aging on Tissues
Several body functions deteriorate with age. The external signs of aging are easily identifiable. For example, the skin becomes dry, less elastic, and thins out, forming wrinkles. The skin of the face begins to appear looser due to a decrease in the levels of elastic and collagen fibers in the connective tissue. Additionally, melanin production in the hair follicle decreases with age, resulting in gray hair. Moreover, the senses of sight and hearing decline, so glasses and hearing aids may...
Numerical Calculations
In engineering applications, the representation of the numerical value is critical. Presenting or reporting the answer is one of the essential parts of engineering practices. Numerical calculations are performed using handheld calculators or computers since numerically accurate answers are always preferred.
The solution to a problem is obtained using different methods. While manually solving algebraic symbols is one of the most common methods, the graphical method is often preferred. Computers...
The solution to a problem is obtained using different methods. While manually solving algebraic symbols is one of the most common methods, the graphical method is often preferred. Computers...
Chunking
Chunking is a powerful cognitive technique that improves short-term memory retention by organizing information into smaller, more manageable units. The brain, limited by working memory capacity, can more easily process and store information when it is divided into "chunks" rather than presented as discrete, unrelated elements. Chunking is especially useful when dealing with large amounts of information, such as numerical sequences, words, or complex ideas.
The principle behind chunking is...
The principle behind chunking is...
Aging
Aging is a complex biological phenomenon influenced by various processes that affect cellular and systemic functions. Several prominent theories attempt to explain its mechanisms, highlighting cellular limitations, oxidative damage, and hormonal changes as central factors in aging.
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...

