Mitochondria - you've probably never really heard of them, have you? Some of you may remember the term from your biology lessons at school. Mitochondria are the ultimate power plants in our body cells. Without them, virtually nothing in the body works, because they produce our energy!
The heart rate variability measurement shows us how well our autonomic nervous system is set up. Roughly speaking, our autonomic nervous system consists of two parts - the sympathetic nervous system (tension) and the parasympathetic nervous system (relaxation). The autonomic nervous system can be seen as a higher-level control center that uses nerves to control and regulate processes and functions in the body - more precisely: our organs and organ systems - and at best keeps them in a certain balance.
