You couldnt survive without your skin. It has many important functions. The main function of the skin is controlling what enters and leaves the body. It prevents the loss of too much water from the body. It also prevents bacteria and other microorganisms from entering the body. The skin helps maintain a constant body temperature. It keeps the body cool in two ways. Sweat from sweat glands in the skin evaporates to cool the body. Blood vessels in the skin dilate, or widen. This action increases blood flow to the body surface. This allows more heat to reach the surface. The heat is then able to radiate off the body. The opposite happens to retain body heat. Blood vessels in the skin constrict, or narrow. This decreases blood flow to the body surface. This reduces the amount of heat that reaches the surface. When this happens, less heat can be lost to the air.

What is different when something constricts as compared to when it dilates?

Two women trade houses without ever having met . They 're both looking for an escape from their problems , but by running away , both come to discover a great deal about themselves . Ria Lynch is married to Danny Lynch and they have a daughter and a son . Danny begins spending less and less time at home with his wife and children . Ria believes another baby is the solution , and is shocked to find out that indeed her husband is going to be a father - but to a child from an affair he has been having . Her husband's unfaithfulness is the event that leads Ria into her decision to switch homes with a woman from the US called Marilyn who lost her teenage son to a motorcycle accident on his birthday . Marilyn is struggling to come to terms with her son's death and has become estranged from her husband . She hopes her time in Dublin will cease her grief . Ria and Marilyn discover deep , dark secrets about the other during the summer . The two become close friends but do not reveal the secrets . { { Expand section } }

Who hopes her time in Dublin will cease her grief?

Here the omnibus came up, and I rode back to Manchester. The whole conversation took up very little more time than it will take to read it; but I thought it worth recording, as characteristic of the people now suffering in Lancashire from no fault of their own. I know the people well. The greatest number of them would starve themselves to that degree that they would not be of much more physical use in this world, before they would condescend to beg. But starving to death is hard work. What will winter bring to them when severe weather begins to tell upon constitutions lowered in tone by a starvation diet--a diet so different to what they have been used to when in work? What will the 1s. 6d. a-head weekly do for them in that hard time? If something more than this is not done for them, when more food, clothing, and fire are necessary to everybody, calamities may arise which will cost England a hundred times more than a sufficient relief--a relief worthy of those who are suffering, and of the nation they belong to--would have cost. In the meantime the cold wings of winter already begin to overshadow the land; and every day lost involves the lives, or the future usefulness, of thousands of our best population.
What was discovered about the nature of the Lancashire people from the conversations on the bus ride back to Manchester?