팟캐스트 영어회화 영어스피킹 리스닝 DAY 3
NPR Podcast
Short Wave
A microbiologist explains why we age and die
DNA keeps replicating, part of that process means it does get shorter and may miss more and more genetic information.
*helix 나선(형)
On a DNA helix, telomeres are the little ends of the strands.
*chromosome 염색체
*methylation 메틸화
It's when your body uses methyl groups, which is just CH3, a carbon with three hydrogens, to silence parts of your gene.
In stress, you would increase methylation of your DNA.
*differentiate 분화하다(단순하거나 등질인 것에서 복잡하거나 이질인 것으로 변하다)
Well, as cells differentiate, they don't need all the genes.
*chronological age 실제연령, 생활연령
How much more our bodies have internally aged than our chronological age, which is just like how many years we've been alive.
I'm almost a decade older than you.
*demise [dɪˈmaɪz] 죽음, 사망
Eventually leads to our demise.
*macabre [məˈkɑːbrə] (죽음이나 다른 무서운 것과 관련된) 섬뜩한, 으스스한
+) macabre experiment
*even more so 더욱더, 더욱이
*detrimental 해로운
Even more so, the old blood had detrimental effects on the younger animal.
*sprout up 여기저기 우후죽순처럼/빠르게 생겨나다.
It hasn't stopped companies from sprouting up, selling young blood from young donors.
+) New businesses have been sprouting up all over the city.
+) Mushrooms sprouted up overnight after the rain.
*on one hand 한편으로는
On one hand, obviously, I want people to, like, not suffer from disease, not age super fast.
*evade 피하다, 모면하다
It's also scary to me, how badly people seem to want to evade death and aging.
I mean, it's understandable. It's me too.
There's so many things that I can't control.
A microbiologist explains why we age and die : Short Wave
Humans have seen a significant increase in life expectancy over the past 200 years — but not in overall lifespan. Nobody on record has lived past 122 years. So, for this early Halloween episode, host Regina G. Barber asks: Why do we age and why do we die
www.npr.org
