Enjoy healthy aging and prevent aging related degenerative medical problems in life!
We age since birth, it is chronological and irreversible. We are also aging, it is biological and not irreversible. Let us aim healthy aging and lead quality life.
With healthy aging and quality life, we can prevent disorders such as diabetes, high BP, heart attack, stroke, joint pain, muscle pain, memory loss, hair loss, weight gain, obesity, skin aging, hormonal problems and cancers.
Like Chronological Age is quantified, Biological Aging is also measurable and quantifiable using set of biomarkers.
Quality of life depends on the ability to function. Beginning at about age 35 or even earlier , declines occur in functions that are essential for the activities of daily living. The H-SCAN measures 12 of the most important of these, including memory, reactions, hearing, vision, agility, decision speed, movement speed, tactile sense, and lung function.
By measuring such biomarkers of aging and comparing scores to norms by age and sex, the H-SCAN determines a person’s functional age for the 12 age tests, as opposed to his or her chronological age.
Functional declines proceed at different rates in different individuals. Genetic factors play a role, but so does environment, diet, and life style, providing evidence that intervention in the aging process is possible. Originally developed as a research tool to test interventions in aging, the H-SCAN now finds application in clinical practices with a focus on aging.
THE H-SCAN BIOMARKERS
1. Auditory reaction time
2. Highest audible pitch
3. Vibrotactile sensitivity
4. Visual reaction time
5. Muscle movement time
6. Lung: forced vital capacity
7. Lung: forced expiratory volume, 1 sec
8. Decision reaction time
9. Decision movement time
11. Alternate button tapping
12. Visual accommodation (need for reading glasses)
How the H-SCAN biomarkers were chosen and validated?
The primary consideration for selecting the 12 biomarkers of aging in the H-SCAN, out of the many tested by labs around the world, was that their decline most directly impacts the quality of life.
Unlike blood and other biochemical tests, no explanation is needed to recognize that memory, lung function, reaction time, hearing, vision, muscle movement, and so on, are involved in virtually all mental or physical activities all day long, and that the ability to function effectively in these respects is synonymous with successful living and aging.
The H-SCAN age tests were the subject of the largest published study of biomarkers of aging to date. The subject population was comprised of 2,462 employees of 17 U.S. life insurance companies. In order to avoid an interest-in-health bias, as is typical of volunteers, all participants were non-volunteers. The study was designed to:
(1) test the validity of the 12 H-SCAN biomarkers of aging;
(2) provided norms and statistical measures for each of the age tests;
(3) determine separately by sex how 17 dietary, life style, environmental, and genetic factors, (including smoking, exercise, and red meat consumption) relate to the rate of biological aging. For a copy of this 28 page report (Journal of Gerontology [Biological Science] 45(6):B187-214; 1990) click this link.
The electronic circuits that run all of the age tests are conveniently housed in a sleek central module connecting to or containing the various transducers used in testing – headphones, vibrometer, viewer with computer controlled lenses, flow sensor for spirometry, push buttons, and LEDs.
Computer keyboard and mouse are not used except by staff to enter participant name, sex, birth date, and height at the start of testing and, optionally, to change test and printout configurations.
An important feature of the H-SCAN is simplicity of operation, the result of years of development and field experience. Setting up the equipment is similarly simple and fast.
At the end of testing, the H-SCAN automatically prints two pages of results. The H-SCAN AGE TEST REPORT gives scores and percentiles based on a 2,462-person norm group. The bar graph of percentiles provides a quick overview of strengths and weaknesses. Functional age is shown in the box below the bar graph.
The H-SCAN Spirometry Report provides a full spirometric evaluation, including volume-time and flow-volume curves for three efforts and a data table including predicted and percent of predicted values.
Applications of the H-SCAN in clinical practice
TAILORING: The 12-function assessment provided by the H-SCAN helps health professionals to tailor therapeutic approaches to the individual.
MONITORING: Repeating the age tests over months or years allows monitoring of changes in individual functions and functional age.
MOTIVATING: Learning one’s functional age is a great stimulus to action, no matter what the result. Participants are more apt to stay with a therapy program and put forth the effort required when their goal is to shoot for retest.