**Mitochondria are the powerhouse of the cell**.[^1] They are an organelle in eukaryotic cells whose key function is to produce [[Adenosine Triphosphate]], the main currency of energy used in the body, through cellular respiration. - Cells have varying number of mitochondria, ranging from none (rare) to hundreds or even thousands per cell. - Exercise, in particular [[Zone 2]] cardiovascular training, can increase the number of mitochondria in your cells. # Impacts of exercise Zone two cardio results in more mitochondria per cell resistance, training results in more cells and thereby more mitochondria, high intensity, interval training results in more efficient, mitochondria and consistently moving throughout the day results in mitochondria consistently, keeping up their workload **** # More ## Source - [[Good Energy (book)]] - [This Google Search](https://www.google.com/search?q=what+types+of+cells+have+mitochondria) ## Related [^1]: That's what everyone knows them as. It seems like somehow somewhere that exact phrase was cemented into every high school text book.