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
Tropic of Cancer (TV series) Tropic of Cancer (TV series) Tropic of Cancer is a BBC television documentary presented by Simon Reeve. It was first broadcast on BBC Two in 2010. It follows his previous series "Equator" and "Tropic of Capricorn". In order of visiting: Simon Reeve began his journey round the tropics in Baja California, Mexico visiting the port of Cabo San Lucas and resort workers who lived in shacks. He moved on to the mainland by ferry, arriving in Culiacan where he met the local police. He then went up into Durango state's mountains to find old western sets before heading down to