Earthing

Although this one sounds ridiculous, there is a surprising amount of scientific evidence behind it. Earthing is literally putting your bare feet on the ground. Here are some of the effects although most results so far would benefit from additional studies:

The predominant theory as to why this has any effect whatsoever is due to the concept of grounding, like that of electric currents, which discharges excess energy into the Earth as a safety measure. The electrical fields our body is constantly exposed to through electronic devices produced by things like phones and through invisible electromagnetic waves, such as radio waves responsible for broadcasting television signals, results in the body harboring excess electromagnetic energy (the body is electromagnetic). Without a way to discharge the excess energy, the body is unable to function optimally and various negative side effects can occur. The act of putting your feet on the ground literally discharges your excess electromagnetic energy into the Earth resulting in more balanced functioning. Turns out that electrical cables aren't the only thing that can benefit from grounding.

I also suggest checking out the The Earthing Movie or the documentary Down To Earth (shorter version) which talks about the science behind Earthing more in depth which you can watch for free here.