The extraction process to remove the lead from the sulfur is very simple, thus lead has been extracted from Galena since the earliest times.Galena from certain regions is rich in silver, and some specimens may contain as much as 20 percent silver. Because of this, silver-rich Galena is also an ore of silver.
Research shows that hiking has a positive impact on combating the symptoms of stress and anxiety, says Gregory A. Miller, PhD, president of the American Hiking Society. Being in nature is ingrained in our DNA, and we sometimes forget that.
Hiking is a great exercise because it is easy to adjust to any level of fitness. Outdoor hiking can be on a level, well maintained path, or up a pathless mountain. This makes it excellent for people who are hoping to improve their fitness, as they can simply take more and more difficult hikes.