The longevity of the ink depends on the pen, but most are about 6â8 months. If the pen dries up, you can try heating up the ballpoint part with hot water in case the rollerball is stuck. Another option is to keep the casing and purchase a refill for the pen. You can find ink refills online in the office supplies section of Shoplet.
Foot fatigue is a common condition that occurs after you stand or walk for long periods of time. The foot muscles become overly tired and cramp, causing the sufferer to experience pain and begin to limp.
Causes of Foot Drop Video. Foot drop can be caused by stroke, tumor, or Parkinson's disease, but it can also develop from an issue in the spine. There are many conditions which can affect the peroneal nerve that controls the foot's ability to flex properly. 1  Tweet. 2  Print.