Your heart is the toughest, most active muscle in the human body. Like any other muscle, it will conserve energy and its consumption of oxygen. Otherwise, if your heart rate didn't decrease, your heart would use up all the oxygen in the body, eventually killing your brain and other organs.
A persons heart rate changes becasue the nervous system tells it to.
Heart rate changes in response to the bodies need for blood (and its energy supplies), without it (the change) you could not lift a finger without passing out.
when your exercising your heart changes its rate. The reason why is because your body needs more oxygen and when your heart is racing blood cells carry oxygen around your body.
the heart rate of humans changes at different rates because it rises up to peaks when large masses or exercise or things that make the human body exhaust happen
exercise ! =]
your not specific enough i can think of at least 20 different formulas to equate time for different situations
they are different types of buying behavoir a business man and a student is an example. they think about different things. a business man might think about the cost and the student might think about the quality or name of brand
When you are starting to think about One Direction or Justin Bieber
i do'nt get it so i need help pleas
try to occupy yourself to stop from thinking about whatever it is your worrying about or try to think more positive about different situations
Probably the sports, there are a lot of different sports now
When you exert, the cells need more oxygen. The heart delivers blood that carries oxygen, so as the demand for oxygen increases the heart rate (and the volume of blood delivered on each beat) increases.
it depends on the situation, if it Can make a different for someone it not, but it can't help than why care.
it depends on the frog. i think that each frog has a different size
Change your heart - Shave Dubstep Remix (Slide Theme) - I personally think, thats its different in some way. the start is slow but it slowly changes to the fast beat of the song.
Graphic wise there has been a lot of changes that has happened
a heart looks almost like aoval shape. many people think it is a circle but its not its way different from a circle. the heart also pumps blood through your body to keep you livin