In the long-term, constipation can cause dry, hard poo to collect in the rectum, called faecal impaction. Leakage of liquid stools is also possible, called faecal incontinence. Straining on the toilet and constipation can also lead to piles, another name for haemorrhoids.
An endowed professorship (or endowed chair) is a position permanently paid for with the revenue from an endowment fund specifically set up for that purpose. Typically, the position is designated to be in a certain department.
When a professor stops teaching, she might be given the title of emeritus, which basically means she can still be remembered as a successful professor. The honorary adjective is most often used with professor, but it applies to other professions whose retirees continue to hold their title, like ministers.