Obesity and cancer third most important risk factor for cancer in the United States, just behind tobacco and diet (see Figure). Obesity is the source of about 15% of all preventable cancers. In 2018, Chinese researchers performed a systematic review and comprehensive quantitative meta‐analysis of cohort studies reporting body mass index (BMI) and the risk of 23 cancer types, providing epidemiological evidence supporting the association between BMI and cancer risk. The strongest positive association between BMI and cancer risk was found among patients in North America. The mechanisms by which obesity may increase the risk of cancer are not well understood, but it
Bowerchalke the equator, the latitude of present-day Argentina. 'Proto-Bowerchalke' and the rest of England and Wales are part of Avalonia, a micro-continent that broke away from the southern landmass, and was 50 degrees south of the equator about 500 mya. It joined with Baltica just south of the equator 400 mya, and was crushed between Baltica, and Laurasia (North America), and Gondwanaland (Africa, Australia, Antarctica and South America) 350 mya whilst near the equator (Variscan orogeny). Avalonia was landlocked and buffeted within Pangaea just north of the equator 270 mya, and became part of a desert in the northern tropics 230