These include: 1  Infections. 2  Addiction. 3  Cost. Social problems.  Mental 1  problems. Overdose.  Illegal drugs are often not pure, and people don't always know what they are 1  taking. Accidents and fights are more likely after taking 2  drugs. Unwanted sexual intercourse is more likely under the influence of  drugs.
Crampons are fastened to footwear by means of a binding system. Improved attachment systems-such as a cam action step-in system similar to a ski binding and particularly well adapted to plastic technical mountaineering boots-have widely increased crampons use.
Tendons function like cables and help to transmit the pulling force from muscles to bones and cause movement. They also function like springs and help to store energy. For instance, the Achilles tendon of the calf muscle helps to store energy and use the elastic recoil to propel us to the next step.