Part 2: Clip 4

Part 2: Clip 4

Published on 15 November 2021
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Transcript
00:00
Aging: A scientific perspective
00:17
Notice how the black caps 
00:18
shorten at each replication.
00:24
The telomere-shortening process is referred to as telomere attrition.
00:30
Telomere attrition can lead to:
00:31
Apoptosis - cell death
00:33
Senescence - loss of ability to divide
00:35
Cancerous Cells - divide excessively
00:38
Essentially, when telomeres become too short, cells either die, become useless or even actively harmful to the body.
00:51
Eventually all three things will lead to cell death, leaving the body vulnerable to diseases and illnesses which defines the biological process of aging. 
01:00
In Summary, biological aging is the degeneration in bodily functions through the loss of organ and tissue function. This is contributed to by telomere attrition as telomere shortening results in cell death.