Which of the following is not a function of essential fatty acids? a. They participate in the functions of immune cells.
b. They serve as structural and functional parts of cell membranes.
c. They help maintain the health of the skin.
d. They provide raw materials for the synthesis of trans fat in the body.
e. They contribute lipids to the brain and nerves.

Well if you pick a machine to work on and that's gonna be your exercise if you don't stick to that machine your muscle strength your muscle mass rather will change because you haven't been doing it you change something in your exercise routine which changes your body's form of dealing with things for example you might become weaker or stronger depending on what kind of exercises you do in whether or not the machine you picked actually your muscles grow.

Because without physical activity, the body has extra "energy" if you will, and so when it is time for bed you are not tired, so you end up staying up all night. also there is probably an effect on your internal clock, which messes with your melatonin production which goes hand in hand with your sleep cycle

Hyper extension is the extension of a limb/body part beyond its limits

I'm sorry but i don't think i can answer this because me and you probably don't have the same healthy fitness zone standards score i wish i could so sorry