Food in Antiquity: A Survey of the Diet of Early Peoples (Expanded Edition) by Don R. Brothwell and Patricia Brothwell is a survey of what is known archaeologically about food and drink in pre-modern times. The chapter on insects includes their food value. In beverages it covers what happens to a neglected jar of fruit juice. Under cannibalism it shows evidence of this being done in paleo times, thought most of the work focuses on the classical and near-eastern civilizations, but occasional mention is made of the mesoamerican cultures as well. There is taxonomic and anatomical information.
The Vegetarian Myth: Food, Justice, and Sustainability by Lierre Keith is against industrial farming. She spent 20 years as a vegan, and now reveals the risks of a vegan diet, and explains why animals belong on ecologically sound farms. And as all the neolithic foods we avoid are produced on industrial farms, she is against the foods we avoid. Here's a well thought out review by Eric Wargo: Clubbing Vegetarians Over the Head With the Truth.
CrossFit gyms use equipment from multiple disciplines, including barbells, dumbbells, gymnastics rings, pull-up bars, jump ropes, kettlebells, medicine balls, plyo boxes, resistance bands, rowing machines, and various mats. CrossFit is focused on "constantly varied, high-intensity, functional movement," drawing on categories and exercises such as calisthenics, Olympic-style weightlifting, powerlifting, Strongman-type events, plyometrics, body weight exercises, indoor rowing, aerobic exercise, running, and swimming.
In December 2005, The New York Times ran a story about the budding CrossFit craze. The reporter interviewed some of the original CrossFitters and chronicled their fitness accomplishments, which were considerable. But the part of the article that grabbed the most attention was the opening anecdote: A first-time CrossFitter named Brian Anderson had experienced a true mess-you-up moment--he had ended up in the emergency room after his baptismal WOD. Repeated kettlebell swings had torn up his lower back to the point that he could barely stand. In intensive care, he was told he had rhabdomyolysis, a condition wherein muscle tissue breaks down to the point that it starts poisoning the kidneys. Rhabdomyolysis is rare as a result of athletics; ultramarathoners sometimes get it, but ER doctors are much more accustomed to finding it in cases of crushed limbs or massive third-degree burns. Anderson didn't need dialysis, but he spent six days on an IV drip in intensive care, followed by two months of physical therapy for his back.
No background science here or lengthy explanations, only 15 easy guidelines to follow to kick-start your Paleo journey. It’s up to you to decide to what extent you want to follow those guidelines, but if you follow them 100% you can be assured that you are eating the best food for your body and greatly investing in your long term health and well-being.
^ Hou JK, Lee D, Lewis J (October 2014). "Diet and inflammatory bowel disease: review of patient-targeted recommendations". Clinical Gastroenterology and Hepatology (Review). 12 (10): 1592–600. doi:10.1016/j.cgh.2013.09.063. PMC 4021001. PMID 24107394. Even less evidence exists for the efficacy of the SCD, FODMAP, or Paleo diets. Furthermore, the practicality of maintaining these interventions over long periods of time is doubtful.
Workout 4A & 4B has an 11 min time cap. It is a chipper that begins with the athlete standing tall behind their measured handstand-pushup box. At the start of the ascending clock, the athlete will kick up to a locked out handstand before performing their repetitions. They will then move onto the pull-ups and complete 50 repetitions before moving to the toes to bar to complete another 50 repetitions, and lastly onto the wall-balls, complete 50 repetitions. Athletes may take as many sets, breaking up the work as needed, to complete the required number of repetitions throughout the workout.
CrossFit is promoted as both a physical exercise philosophy and a competitive fitness sport, incorporating elements from high-intensity interval training, Olympic weightlifting, plyometrics, powerlifting, gymnastics, girevoy sport, calisthenics, strongman, and other exercises. It is practiced by members of over 13,000 affiliated gyms, roughly half of which are located in the United States, and by individuals who complete daily workouts (otherwise known as "WODs" or "workouts of the day"). CrossFit has been criticized for allegedly causing people to suffer from unnecessary injuries and exertional rhabdomyolysis.