Well with blocked vessels, lets use plaque buildup as the reason for blocked vessels. It's Like trying to match together two puzzle pieces that don't fit. The piece if forced together, will be a tight fit much like how blood cells/platelets trying to fit through a small area. The pressure will be increase because the more pressure that is being put on will help to push blood through a clotted area.
At least 2 fruit servings a day
Talk to a close friend or family member about the situation, telling them how you feel. Sometimes talking it out can help.
Confront your parents, if you feel comfortable talking to them about it, and tell them how it's affecting you.
Hope this helps~!
~{Isle of flightless birds}