This was one of the highlights of the conference. Not only did he share my passion for preventative medicine, and opinion about the current lack of it in our healthcare system but he also gave an exquisite overview of the developmental origins of non-communicable diseases (NCDs) – a recurrent theme in IUPS this year.
Most interestingly he started off with an overview on obesity – demonstrating the current focus on it with the google search “how can I lose weight?’ coming up with 229, 000, 000 results! I think this raises some interesting questions. Do we concentrate on obesity so much as a public health issue for good reason? Yes we clearly have an obesity epidemic (http://www.iaso.org/iotf/obesity/). Yes obesity has increased substantially over the last 30 years. However how many google search results did “inactivity” get compared to “obesity”? 15 vs 52 million hits whilst inactivity is the fourth leading cause of death worldwide – a place above obesity (source – World Health Organisation: http://www.who.int/healthinfo/global_burden_disease/GlobalHealthRisks_report_full.pdf ). The sceptic in me would argue this is because there is no drug we can buy, or surgery we can do to cure it. Perhaps we could have some physiological prospectives on physical inactivity in Rio 2017, and maybe even a symposium dedicated to it!
Anyway, moving quickly back to obesity – when should we intervene? Well Mark Hanson argued that long term dieting doesn’t change the “appetite-stat” so we’ve missed the boat if we get to that stage. He even went on to point out that pregnant women with a less “prudent” diet had fatter infants at birth (which was still true at 4 years old!), and that high protein/fat diets could cause epigenetic changes which could greatly influence the fat levels of children. It seems we need to act now to change the health of not only our own children but also our grandchildren!