The most frequent causes of death from Werner Syndrome are heart attacks and cancer. It is not uncommon for affected individuals to develop multiple, rare cancers during their lifetime. People with Werner syndrome usually live into their late 40's or early 50's.
1 Answer. I am not a business analyst (I'm a software developer) but wil hazard a semi-educated guess: A requirement is something that is desired and fills a business need while a constraint limits choices to fit within an existing space. For example, a requirement might be something like: As a user, I must be able to enter the lengths of two adjacent sides of a rectangle and then click a single button to obtain the perimeter of that rectangle..
It appears that constraint is something imposed from without, like laws or morals, but restraint is something a person imposed on her/himself. However, here are definitions of these words from the American Heritage Dictionary*. While there is a distinction between the two words, as in your definition, note that meaning # 4 under restraint, is constraint.. n. 1. The threat or use of force to prevent, restrict, or dictate the action or thought of others.