A topical lotion that provides fast-acting, water resistance pain relief from arthritis, joint aches, muscle aches, tennis elbow, bursitis and more.
Feeling unmotivated? Use "Skinner's Law" to get yourself back on track – Big Think
In the 18th century, Jeremy Bentham built his philosophy on the idea that humans are motivated by pain and pleasure, and this idea is supported by …
Source: back pain