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 It is not unusual to develop lightheadedness during some viral illnesses, such as a cold or the flu. 2  Resting will help prevent attacks of lightheadedness. 3  Do not drive a motor vehicle, operate equipment, or climb on a ladder while you are dizzy.