Answer:
Muscle contraction is the activation of tension-generating sites within muscle fibers. In physiology, muscle contraction does not necessarily mean muscle shortening because muscle tension can be produced without changes in muscle length, such as by holding a heavy book or a dumbbell at the same position. The termination of muscle contraction is followed by muscle relaxation, which is a return of the muscle fibers to their low tension-generating state.
Explanation:
Answer:
Panic attacks typically begin suddenly, without warning. They can strike at any time, when you're driving a car, at the mall, sound asleep or in the middle of a business meeting. You may have occasional panic attacks, or they may occur frequently.
Explanation:
Hope this helps
In the ways drugs and supplements are the same are they both have an effect of the body's nervous system and both are psychoactive substances. In the ways they are different, drugs are often used for overcoming a illness while supplements are not necessary and are optional. Hope I helped!
