These people often have tingling and numbness in the feet as well. Many people complain that their feet are overly sensitive to touch (hyperesthesia) and can have varying degrees of burning pain. It can range from mild to disabling. Diabetes and alcohol abuse are by far the most common causes of neuropathy in the legs.
Q: what cause macbook pro battery swelling? Apple battery packs contain a set of 6 lithium Ion (Li-Ion) cells (the metal covered envelopes), connectivity circuitry, and a small logic board. The main cause for battery cell swelling is what is known as thermal runaway. If a cell reaches a certain temperature then a chemical in the cell (usually Cobalt Oxide for Lithium Ion batteries) starts an unintended reaction which is exothermic in nature (i.e. it creates heat).
The force required to slow the car down as it coasts downhill is used to recharge the hybrid battery, but on a long decline this extended period of charging can cause the battery to overheat, damaging the battery assembly and bringing end-of-life ever closer for the stressed hybrid battery.