It makes sense that having money affords us better health, but what about pure social status, i.e. power and influence? Turns out they're pretty influential, too. Researchers from the University of Richmond studied an Amazonian society with minimal wealth, assessing the health levels of men with differing levels of political influence. Those with little influence were found to have higher levels of cortisol, the stress hormone that can lead to many different systemic problems, as well as a higher risk of respiratory infection, the leading cause of sickness and death in their society. We already knew that 'money is power;' now we've learned that 'power is health.'