If your workout never progresses, your body will never reach .
O a higher level of fitness
O your resting heart rate
O large muscles
O a smaller waist

Muscles in the body us with a lot of things for example, if i wanted to lift a heavy box and had no muscle i would just collapse where i was because of the fact muscles hold us together. overall they are 650 muscle in the human body, all of them have different purposes and ways to keep us together. there are three types of muscle in the body skeletal, smooth, and cardiac muscle. skeletal muscle are attached to the bone and with movement. smooth muscle, this is found in the wall of our organs, such as our stomach, this muscle with movement   as well, without this muscle, we would only be allowed to eat small amounts. the cardiac muscle is the heart muscle and probably the most important one. these are only found in the walls of the heart and the heart pump blood to the other parts of your body. we have two different types of muscle fibers, slow twitch and fast twitch. slow twitch muscles enable long-endurance feats such as distance running. fast twitch fatigue faster but are used in powerful bursts of movements like sprinting. there are three different types of muscle contractions concentric, eccentric, isometric. concentric contraction causes muscles to shorten, thereby generating force.   eccentric contractions cause muscles to elongate in response to a greater opposing force. isometric contractions generate force without changing the length of the muscle.: //athleticquickness.com/muscle-contraction-types-part-1/

Small intestine because that is the organ which absorbs nutrients

T.j. is struggling with whether or not it is worth trying to quit his prescription drug abuse. he used to be dedicated to his family and friends, but he worries that his abuse has driven away everyone who cares about him so there is no point in quitting. what long-term benefits can you use to try to motivate him to make the effort to quit? (3 points) improved healthy cholesterol levels leading to decreased chance of heart disease improved relationship stability and better ability to handle stress or depression increased stress levels and better chances of making and keeping friends increased blood glucose levels and less chance of developing type 2 diabetes