Life and death during the Great Depression — PNAS:

Correlation and regression analyses confirmed a significant negative effect of economic expansions on health gains. The evolution of population health during the years 1920–1940 confirms the counterintuitive hypothesis that, as in other historical periods and market economies, population health tends to evolve better during recessions than in expansions.

This is not new: "Are Recessions Good For Your Health?" The Quarterly Journal of Economics, 2000:

Total mortality and eight of the ten sources of fatalities examined are shown to exhibit a procyclical fluctuation, with suicides representing an important exception. The variations are largest for those causes and age groups where behavioral responses are most plausible, and there is some evidence that the unfavorable health effects of temporary upturns are partially or fully offset if the economic growth is long-lasting

Although the effect is apparently real, the health benefits during recessions are unequally distributed and widen the income induced health gap:

Self-rated health improved in absolute terms for all occupational groups even after the economic recession. However, the relative disparity increased between the top and middle occupational groups in men.

The health debacles that occur during periods of rapid growth are equally obvious:

Cancer casts a shadow over the villages in this region of China in southern Guangdong province, nestled among farmland contaminated by heavy metals used to make batteries, computer parts and other electronics devices.
Every year, an estimated 460,000 people die prematurely in China due to exposure to air and water pollution, according to a 2007 World Bank study.

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...Thus adding a few more exhibits to the question of relevance of GDP as any sort of measure of human happiness, or the obviousness of the need for its incessant growth...

Shawn Hattingh on Cholera in South Africa:

Cholera outbreaks in South Africa are due to the ANC-led state's failure to address the inequalities of apartheid. In fact, both national and local governments in South Africa have promoted the idea that water should be sold as a commodity. Consequently, millions of people, even where the infrastructure exists, don't have access to clean water because they can't afford the high prices charged for it. Over 40% of South Africans are unemployed and simply don't have the money to pay for clean water. Unfortunately, there is little hope that free water for all will be rolled out across the country. All of the parties involved in the upcoming election, including the ANC,26 COPE,27 and the DA,28 remain committed to neo-liberalism and the commercialization of services -- in other words, committed to selling water as a commodity and cutting off people's water if they don't pay for it. This, in turn, is going to force people to reuse the water they do manage to get or access water from other sources such as streams. Therefore, cholera is set to break out again and again in South Africa. Only by organizing themselves and winning free water for all through their own actions can people put an end to this disease of privatization. Water is essential for life -- it mustn't be turned into a commodity to be sold and bought.