No. As handsonanatomist mentions it has to do with blood flow to the myocardium(heart muscle itself). The heart muscle itself only receives oxygen during diastole(relaxation), but as heart rate increases the relative length of diastole shortens compared to systole(heart contraction). TLDR; your heart gets tired because it only gets oxygen while relaxed, and the relative amount of time spent relaxing is less.
Mine: is a possessive pronoun. Example :That is mine. My: is a possessive adjective. Example : That is my car. This is my iPodâ --- - This iPod is mine. This is my pen ------ This pen is mine. This is my car ------ This car is mine. Those are my paintings ------ those paintings are mine.
Itâs been shown that the body and mind canât tell the difference between reality and imaginationâso both forms count. All these steps are tools to help you wash away the anger and hurt feelings that happen to each of us as we journey through life. Remember, to rid ourselves of the toxic feelings that remain bottled up inside us, we must bring them up and engage them.