Food and drink prohibitions In Argentina and other Spanish language countries bull's testicles are served as "huevos de toro" or 'bull's eggs'. In some regions, such as the European Union, brains and other organs which can transmit bovine spongiform encephalopathy ("mad cow disease") and similar diseases have now been banned from the food chain as specified risk materials. Although eating the stomach of a goat, cow, sheep, or buffalo might be taboo, ancient cheesemaking techniques utilize stomachs (which contain rennet) for turning milk into cheese, a potentially taboo process. Newer techniques for making cheese include a chemical process with artificial rennet. This means that
Varicose veins Varicose veins Varicose veins are veins that have become enlarged and twisted. The term commonly refers to the veins on the leg, although varicose veins can occur elsewhere. Veins have pairs of leaflet valves to prevent blood from flowing backwards (retrograde flow or venous reflux). Leg muscles pump the veins to return blood to the heart, against the effect of gravity. When veins become varicose, the leaflets of the valves no longer meet properly, and the valves do not work. This allows blood to flow backwards and the veins to enlarge even more. Varicose veins are most common in the