Answer: Internal influences may mean health hormones, as hormones are a key structure in how we function. An external influence could be sleep, as humans need sleep as a way to recharge, or diets as they have an effect on both hormones and physical durability
True, lots of things are enjoyable once you like to do the activity
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I believe it is Amy's, because you said Amy's target heart rate zone is 140bpm -- 186bpm. Thus, Amy's is higher
<span>Anaerobic is the kind of</span> exercise that does not require the use of oxygen to metabolize energy. Anaerobic focuses more on muscle strength exercises such as lifting. Though it requires energy still it can be performed with less air.
