Emotions such as anger and hostility ramp up your "fight or flight” response. When that happens, stress hormones, including adrenaline and cortisol, speed up your heart rate and breathing. You get a burst of energy. Your blood vessels tighten.
Stress cardiomyopathy can occur in reaction to stressful news, such as a loved one's cancer diagnosis. And strong emotions, such as anger, may cause irregular heart rhythms. Stress can be harmful to your heart, too. If you are under stress, your blood pressure and heart rate go up.
It's affects ones mental health too leading to loss of concentration and irregular eating and sleeping habits
The Skeletal system protects for example the heart and several aspects of large vasculature. The skeleton also has the means to produce blood cells in the marrow of some of the bones.
A chemical reaction which is associated with a release of energy and thus, is associated with a negative free energy change is said to be an exergonic reaction.
An exergonic reaction owing to the negative free energy change is a spontaneous reaction.
The energy that is released in the exergonic reaction is usually observed in the form of heat and light.
The energy is released due to the breaking of the chemical bonds.
Therefore, on burning of the firewood the bonds between the glucose molecules break up which leads to the release of energy in the form of heat and light and this is thus, an example of an exergonic reaction.