The cardiac cycle consists of two phases; a period where the heart muscle is relaxed, called <u>diastole</u>, and a period of contraction, called <u>systole</u>.
These are then divided into four stages. These are;
1.<u>Ventricular Filling Period (VPF)</u>
2. <u>Isovolumetric Contraction Period (ICP)</u>
3. <u>Ventricular Ejection Period (VEP)</u>
4.<u> Isovolumetric Relaxation Period (IRP)</u>
At rest, cardiac diastole lasts for approximately 0.5 seconds, and cardiac systole lasts approximately 0.3 seconds to complete. However, during exercise, when the heart rate is increased the time period of <u>diastole</u> , especially, is reduced.
Answer:
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Explanation:
Stress can affect your social health in multiple ways. Such as, it can make you moody which can make you lash out at friends. You can also start to ignore them or get mad or frustrated easily. It can affect you mentally because it can make you less focused. It can also make you frustrated at what you're doing. It can also make you go a little crazy with all the things you have to do. Finally, it can affect your physical health because, in one way, you may lack sleep. Say it's already midnight because of a project you had to work on and you have to study for two exams that are in your first and second period tomorrow. You could end up taking a nap and failing the entire class. So, what I recommend is to step away from your work, take a few deep breaths and go out and do something fun. Like reading, watching tv, youtube, or whatever you enjoy doing. After you feel calm, go back to your work feeling refreshed.
Hope this helps! :)
