GRAVITY HABITS Joan Vernikos (2011). Sitting Kills, Moving Heals Vernikos has a PhD in pharmacology and worked at NASA as a research scientist and director of multiple programs for over 30 years...her research focuses on astronaut health Research shows a suprising similarity in the negative effects of lack of gravity for astronauts and those earthlings who have seditary lifestyles, especially those that sit a majority of their day (e.g., office and white collar work at computers, students sitting in classrooms) and those confined to beds (e.g., those in hospitals or those homebound that are confined to a bed) including: DECREASED bone density, muscle mass, growth hormone, heart output, balance, immune response, and sleep... all of the negative effects can be reversed with GRAVITY HABITS throughout the day, especially postural shifts (e.g., as simple as moving from sitting to standing many times a day..."Every time you stand up, the body initiates a shift in fluides, volume, and ho...