US citizens , primarily those aged 18 to 24 , are increasingly staying indoors , mainly due to working remotely and services like online shopping – which is renewable energy . In 2012 Americans saved 1,700 trillion British thermal meters of heat by spending an extra eight days at home over the year . The reduction came from less travel and use of offices and fewer online shopping . While this may be an environmental issue , a sedentary lifestyle is considered to be unhealthy .
US citizens, primarily those aged 18 to 24, are increasingly staying indoors, mainly due to working remotely and services like online shopping – which is saving energy. In 2012 Americans saved 1,700 trillion British thermal units of heat by spending an extra eight days at home over the year. The reduction came from less travel and use of offices and fewer people shopping. While this may be an environmental plus, a sedentary lifestyle is known to be unhealthy.