Fast Twitch Fibers- Muscle fibers that can also be characterized by the term Type IIA and IIB. These fibers contain fewer capillaries, mitochondria, and myoglobin. These fibers fatigue faster than  Type I fibers.

https://foreignpolicy.com/2015/01/29/how-individual-soldier-fitness-changed-on-the-front-lines-in-iraq-and-afghanistan/

http://kxan.com/2015/01/29/la-fitness-customers-paid-for-gyms-still-not-open/

Obesity – 1. The condition of being considerably overweight , and refers to a person with a body mass index of 30 or greater who is at least 30 pounds over the recommended weight for their height.

2.The condition of subcutaneous  fat exceeding the amount of lean body mass.

http://www.wfaa.com/story/news/crime/2015/01/27/man-stabs-woman-screwdriver-irving-24-hour-fitness-gym/22391609/

http://www.thedailybeast.com/articles/2015/01/26/why-your-fitness-tracker-isn-t-making-you-thinner-yet.html

http://www.stamfordadvocate.com/local/article/Some-grow-weary-of-fitness-trackers-6039611.php

Occipital Lobe – A portion of the cerebral cortex that deals with vision.

http://www.press-citizen.com/story/news/local/2015/01/25/school-funds-focus-fitness/22324309/

http://abc7.com/news/man-injured-in-stabbing-outside-la-fitness-in-noho/490454/