When your hart beats, it pumps blood round your body to give it the energy and oxygen it needs.as the blood moves,it pushes against the sides of the blood vessels . the strength of this pushing is your blood pressure.if your blood pressure is too high it put's extra strain on your arteries and this may lead to heart attacks and strokes.
1)systolic pressure :-
when your heart beats it contracts and pushes blood through the arteries to the rest of your body this force creates pressures on the arteries is called systolic pressure.
2) disytolic pressure:-
the minimum level of blood pressure measured between contraction of the heart. it may vary with age ,gender, body weight, emotional state , and other factor.