We'll be investigating the reasons why we cry, and looking at some of the differences between men and women and between crying in public and in private.
The inner mucosal layer consists of transitional epithelium, which allows the bladder to expand so it can hold more urine, a handy feature for social mammals like us who prefer dry underwear and peeing in private.
Senior executives at most leading investment banks will agree privately that in the boom years they had their eyes mainly on revenue targets rather than profits or returns on equity.