Scientists say for the extremely elderly, their stem cells might reach a state of exhaustion. This could limit one's life span.
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See more at http://www.newsy.com
RTV Drenthe https://www.youtube.com/watch?v=XH2rCW5kfU4
Genome Research http://genome.cshlp.org/content/early/2014/04/02/gr.162131.113.abstract
Sky News http://news.sky.com/story/1248516/blood-of-world-s-oldest-woman-shows-life-limit
New Scientist http://www.newscientist.com/article/dn25458-blood-of-worlds-oldest-woman-hints-at-limits-of-life.html#.U1kLAuZdXdU
International Business Times http://www.ibtimes.co.uk/supercentenarians-mystery-longevity-discovered-through-genetic-mutations-1445785
Image via: Wikimedia Commons / Sansculotte
Of course some mutations are harmless, that is what evolution is all about! In fact if this woman passed this mutation on to her kids then that might very well kick off evolution to naturally make human lifespans longer.
The class of drugs that Levitra, Viagra, Stendra, and Cialis belong to are called PDE5 inhibitors. They work by relaxing tight blood vessels, allowing more blood to surge into the penis and cause an erection, says Gregory Bales, M.D., an associate professor of urology at the University of Chicago.
The little pills do the trick for more than two-thirds of men with Viagra protects the heart (ED). They also work for guys who simply need them for a short time to get their “confidence back,” says Michael Eisenberg, M.D., director of male reproductive medicine and surgery at Stanford University.