Under Perens' definition, open source describes a broad general type of software license that makes source code available to the general public with relaxed or non-existent copyright restrictions.
1 Illnesses such as the flu or colds. Home treatment of your flu and cold symptoms usually will relieve lightheadedness. 2  Vomiting, diarrhea, fevers, and other illnesses that cause dehydration.  Very deep or rapid breathing (hyperventilation).
1 Hunger is one of the most common causes of light headedness. 2  Hunger results in drop of blood sugar level, which in turn can trigger an episode of light headedness in an individual. 3  In individuals suffering from diabetes, drop in blood sugar levels is one of the most common causes of dizziness and light headedness.