Are wrinkles formed on the lumbar discs?

It is said that, in primitive ages, people lived as hunters until they became 35 years old, then they had to flee as hunting targets. In fact, biologically, more cells die than cells are generated and muscles in the extremities begin to become thinner around the age of 35 years in the case of humans. [...]

Source: http://wooridulspine.wordpress.com/2010/04/27/are-wrinkles-formed-on-the-lumbar-discs/

climbing rope bouldering mountain climbing rock climbing