ответить на вопрос what do you know about stress? желательно ответ объемный и грамотный,

Stress can alter levels, which can cause mood swings, fatigue, hyperglycemia, and metabolic syndrome, a major risk factor for heart attack and diabetes.(Стресс может изменять уровни, которые могут вызвать резкие перепады настроения, усталость, гипергликемия и метаболического синдрома, является основным фактором риска для сердечного приступа и диабета.)

How does stress impact your health? That question has been studied intensely by psychoneuroimmunology researchers for over 30 years. Vaccines, wound healing, and chronic diseases are some of the ways researchers have measured our immune system health. Stress has been shown to impact all three of these things. First, immune responses to vaccines are delayed or substantially weekend in stressed or distressed individuals. Second, stress and depression are risk factors for having longer infections and delayed wound healing. This is thought to be because of the increase in inflammation (specifically, pro-inflammatory cytokine production) caused by negative emotions like anxiety and depression. Counter-intuitively, the immune system is not weakened but instead is seemingly over reacting to a wound, flooding it with immune cells and proteins but making it more difficult for the healing process to work efficiently. Third, chronic stressors can influence biological markers of disease. For example, chronic stress (like being a mother caring for a chronically ill child) can directly cause long-term changes in pro-inflammatory cytokine production. And having increased inflammatory cytokine levels is a risk factor for cardiovascular disease, cancer, and diabetes. Despite these associations, the exact pathways from chronic stress to disease have not yet been worked out. These are examples of some of the findings linking stress to immunity.

But how is stress actually measured you may be asking? A lot of different ways. A “stressed population” might mean a group of people who are going through something really difficult – like caring for a loved one who is terminally ill. Or “stressed population” could mean that these people self-reported having had a large number of stressful life events (eg. history of abuse, near death experience, severe financial strain, etc) in their past. To be an active consumer of science, it’s important to always look at the methodology of a study because often the way one thing is measured (like stress) has big implications for how we interpret the findings. For example, a study showing that would healing is slowed in a sample of caregivers does not mean that we can get out of helping our roommate after she sprained her ankle with the argument “just the mere act of caring for your will weaken my immune system!”

I have received the enquiry from Green & Co  (this week.just, this morning ) эти три варианта pr. Perfect I have just received the enquiry from Green & Co
I received the enquiry from Green and Co (yesterday, two days ago, last month) эти три варианта past simple 

We visited some places of interest yesterday, a week ago. 
We have visited some places of interest today,
We have already visited some places of interest
 
They were in the office yesterday
they have been in the office lately, this week, 
they have just been in the office

I think that a family is a very important thing for everybody. A family is the people that always love you, support you and help you. For me it is impossible to live without my family. My family is not large. I have got a mother, a father and a brother Dima. There are four of us in the family. We also have grandparents and a lot of relatives.

First of I’d like to say a few words about my parents. My mother is a good-looking woman with blond hair. She is forty-two but she looks much younger. She is a teacher of Russian. She works in a school. She likes her job very much. My mother keeps the house and takes care of my father and us. She is very good at cooking. She always cooks very delicious meals. Our mother is very kind, but sometimes he is strict to us. She always checks if our homework is done. Mother takes care of our free time, so that we are not able to waste our time.

My father is a lawyer. He is forty-five. He is a professional. My father does his work very well and gets good money. He is also handy with many things. He can fix almost everything. He also likes making models of planes. My parents have been married for 20 years already. They have much in common, but they have different views on music, books, and films. For example my father likes thrillers and my mother likes adventure films and fantasy. My father is fond of football and chess. My mother likes playing ping pong. My parents work a lot.

My younger brother, Dima, is a student of the same school. He wants to become a lawyer, like our father. Besides he is playing table tennis like our mother. He studies well. On the one hand, Dima loves constructing and can become an aircraft designer, on the other hand he is very good at languages and can become an interpreter. My grandmother and my grandfather are pensioners. They live not far from us. Sometimes our granny helps us to run the house. She is fond of knitting. My grandfather is a military man and he reads a lot! The library that we have at our flat is the tenth part of all the books that granddad has at his place.

As for me, I’d like to become a computer programmer. I have always loved computer science. I can make some computer programmes and I also can play the guitar very well. I like different kinds of music, but mostly I prefer rock.

We all get on with each other very well. Every one in our family is rather busy, but we are always very happy if we have a possibility to spend some time together. My family means a lot to me.