What are the impacts of a typical modern lifestyle on blood circulation?it is better to give a reply which will be perfect for my assignment...

Well, we can't do your assignment for you, but let me give
you some ideas to think about including that might help you do it on your
own.

1)  Diet - Americans
consume a lot of fat and a lot of salt.  Extra fat tissue adds miles of capillaries for
blood to feed, and affects circulation to the rest of the body.  Salt tends to raise
blood pressure, also affecting circulation.

2) 
Lack of exercise - America has an obesity issue, and we
spend a lot of hours on the couch, in front of the television, doing anything but
exercising.  This makes our heart weaker over time, and combined with our diet adds to
the circulation problems.

3)  Work schedule
- Americans work more hours and take less vacations than almost any
country on Earth.  The stress we put ourselves through to earn the money it takes to
support a modern lifestyle affects blood pressure and heart rate, and makes us more
prone to heart attacks.