Like How cells know that’s it’s right time to develop new kind of cell example responsible for more testosterone production. And if organism survival is only goal of life than why it get old and die.like just regenerate/replace old cells into new ?
In: 4
Survival isn’t the goal of life. That’s a false premise. Reproduction and continuing the species is the goal of life. Children become adults because sexual maturity and reproduction is the goal.
Why do we age? Our chromosomes have these little caps on them called telomeres. Telomeres are important for helping our cells divide and renew healthily. But every time your cells divide and renew, your Telomeres get a little shorter. Eventually they become so short and weak that your cells can no longer divide and renew, and the result is aging cells. It’s called the “telomere end replication problem.”
Why does this happen? It has to do with some sciencey chemicals called DNA polymerases that are above my level of understanding, but the broader takeaway is: It’s just how our faulty, imperfect human bodies behave.
By age 70, something like 90% of our body’s energy is devoted to producing body hair, moles and odors. Very little energy remains to support the heart, muscles, blood vessels and other critical functions, so we start to look old and then die.
Hormones cause development/growth. Menopause is actually a big problem for women because they slowly turn into men (due to the hormone DHT) and their vaginas shrink and become dry (leading to itching, incontinence), along with plenty of other problems.
Sounds crazy, and no one talks about it, but /r/menopause knows. You can take finasteride to block excess DHT and hormone therapy (cancer risk was assumed and is now being debated) or at least local hormone creams for the vagina.
Older men can benefit from testosterone combined with a pill that keeps their balls from shrinking.
And besides that is the problem of telomeres that prevent infinite cell division, as already explained.
Latest Answers