<span>If someone you know is considering suicide, talk with them about your observations and demonstrate your support for them. It may be important to tell others about the problem if they refuse to get help.</span>
Myofibrils slide together.
the other options don't make sense, and the myofibrils sliding together is the mechanism the muscle uses to generate force.
Marathon’s consist of running/jogging/sprinting long distances, so first off it would be a good idea to increase stamina, which would be done by jogging everyday, increasing your distance everyday. Stretch your calf muscles upper leg muscles to avoid cramps while running too.
Eating breakfast helps boost metabolism because it gives you energy
Causes stress? Where are the choices
My guess is...
Less sleep
Bad energy around your environment
