Dear friends,
we often wonder how one person looks much younger at a certain age than another person, irrespetive of moderate variations in lifestyle and smoking/drinking habits, workload, family life, etc.

Of course, genetics play a big role in the speed at which someone ages. Time is only a relative factor, also at the cellular level, and also animals perceive time at a different speed.

While brainstorming about that topic, I found a simple formula: Let us imagine someone's parents from mother's side died from a natural death at ages of 65 and 70, and from father's side at ages 55 and 80. Adding all that together gives a total of 270 years. Divided by 4 (= 4 grandparents) that gives 67.5 which means that the average expected life span of this person (person # 1) is 67 years and 6 months, if all goes well and no accident or disease shortens the genetically determined life span. One could do the same calculations considering the parents of a person, for example they died of a natural death at age 75 and 65, = 140 / 2 = 70 years expected genetical natural life span.

Ok, let us compare person # 1 with person # 2 who for example had grandparents dying of a natural death at ages 90, 80, 95 and 100. Now, that gives an total sum of 365 and divided by 4 a genetical average of 91.25 which means that person # 2 has a genetically determined average life span of 91 years and 3 months if all goes well.

Now, 100% of the lifespan for person # 1 is 67.5 years, and for person # 2 is 91.25 years. Means: Half the biological life is over at age 33 years and 9 months for person # 1 and for person # 2 at age 45 years and about 7 months (45.625).

According to my observations, people whose grandparents and parents had a long life will look younger than a person at the same chronological age whose grandparents and parents had a shorter natural life span.

When we take the example of persons #1 and # 2, person # 1 will look older at the chronological age of 30 than person # 2 because biologically he/she IS OLDER.

Any ideas, comments? Brainstorming is very welcome. :-)))

Warmest regards and love, Elisabeth

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