Zen Heater The world has changed a ton since the time our progenitors crouched in caverns, yet individuals as a rule have changed practically nothing. We stress over a similar kind of things. We profit by having the opportunity to unwind and renew ourselves. Mechanical progresses in only the previous hundred years have given us longer lives and an alarming cluster of accommodations, permitting us more relaxation time and more inventive approaches to appreciate it than any other time in recent memory. In any case, as advances in innovation quicken continuously and keep on changing the manner in which we live, so our lives become increasingly perplexing in our push to stay aware of it.