Life measurement

[weknowthewor]

Hi there,

 

I believe that life span of a person is measured on the respiration counts it intakes through out the life. If so then how can ones life span can increase or decrease by taking special food contents..

 

Thanks........

[Mokele]

I believe that life span of a person is measured on the respiration counts it intakes through out the life.[/quote

 

I've never heard of that before, so I'd have to say no, it isn't.

 

Mokele

[insane_alien]

never heard of that one either. it would also be very hard to determine the lifespan in that case. and, it would say that an athelete(breathe a lot faster when training) that lived to 60 would have a longer lifespan than someone with a very relaxed job and never got worked up (slower than average breathing) but lived till 65.

 

years works. stick with it.

[satrohraj]

I dont think so!

[swansont]

There is a measure for the average number of heartbeats; most mammals get roughly a billion. Man is an exception, in part (I would imagine) because of modern medicine, since 1 billion gets you about 26.5 years. Metabolism factors scale to some fractional power of the mass. I imagine respiration does follow a similar path to hearbeats.

 

http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=518447&dopt=Abstract

http://hep.ucsb.edu/courses/ph6b_99/0111299sci-scaling.html

http://ocw.tufts.edu/Content/5/CourseHome/216005

http://www.ce-review.org/99/12/pinkava12.html

[weknowthewor]

Then plz. tell me on what basis is life measured ?

[ecoli]

we use years because a year is the same amount of time, no matter who you are. Whenever you measure against something, you have to make sure it's standard. This is why the "British" measurement, didn't work out so well. If the person selling me rope has really small feet, I'm going to get riped off if I buy several feet of rope from him, as compared to the guy with bigger feet (Assuming they charge the same amount per foot).

[immortal]

Then plz. tell me on what basis is life measured ?

 

life can be measured by looking at the organism's molecular condition. Every cell in our body has chromosomes and at the tip of the chromosome there are small bits of base pairs called telomeres. Aging occurs when the length of the telomere becomes sufficiently short and the cell stops dividing and eventually dies out. But this goes the opposite way in cancer cells every time the cell divides the telomere length is increased and hence the cancer cells are immortal.They can increase the telomere length because they have an enzyme called telomerase which performs this function. If you can activate the gene which synthesizes telomerase you can live forever.