Here's an article in Australian Fairfax Media: "Fears new wonder drug could lead to STI epidemic"

It refers to this article in The Lancet: "Community-level changes in condom use and uptake of HIV pre-exposure prophylaxis by gay and bisexual men in Melbourne and Sydney, Australia: results of repeated behavioural surveillance in 2013–17"

Here's the key take-away from the Fairfax article:

An international 2016 study of men who have sex with men found the chances of contracting chlamydia, gonorrhoea and syphilis were increased 11, 24, and 44-fold respectively in PrEP users. Fears have now been raised that these staggering numbers might be replicated in Australia.

One of the stress points that seems increasingly correlated with modernity is a rise of obesity in many developed nations (most notably the United States, but also the United Kingdom, Canada, China, Mexico, and elsewhere). Japan instituted a fat tax that requires periodic weight measurements as a way to combat obesity. Denmark and India have taxed certain foods. New York City, while Michael Bloomberg was mayor, famously taxed soda as part of a policy package to address weight gains.

Meanwhile, groups have organized to attempt to reduce the amount of stigma associated with being fat, arguing that stigmatizing obesity and arguing for aggressive dietary change often creates runoff mental health issues among fat people, or worse that doctors' obsession with weight blinds them to other more serious health issues whose symptoms are being reported by fat patients.

This question is for everyone hailing from a nation dealing with some form of rise in obesity: What is the right balance to strike with public policy when it comes to dealing with the rise of obesity?