Subject: the question is in the comments box

>    hi
>    i did an experiment at school and i need a conclusion to it but i
>    can't think of a specific enough answer to get a good mark. Its
>    coursework. i am having problems analysing the graph. it looks like
>    steps going up and then down again. This represents when i drank a
>    gulp of coffe and when i waited for a minute and then drank another
>    gulp. I need to know why my pulse went up in the way that it did, like
>    steps. When i drank a gulp my pulse went up quickly and when i waited
>    for a minute it leveled out at where my pulse had reached. can you
>    tell me why?
>    thanks a lot

Re: the question is in the comments box