Common causes of gas and bloating include: 1  Swallowed air. 2  Foods and beverages. 3  Lactose intolerance. 4  Constipation. 5  Medicines or nutritional supplements. 6  A medical condition, such as a bowel obstruction or Crohn's disease. 7  Changes in hormone levels.
HIV and AIDS social issues. In many regions, social issues increase the risk of HIV infection making it difficult to tackle the global HIV epidemic effectively. Certain groups of people are more affected by HIV than others. Sometimes this is because they engage in high-risk behaviours, while others experience stigma and discrimination that stops them from approaching HIV services.
AIDS was first recognized by the United States Centers for Disease Control and Prevention (CDC) in 1981 and its causeâHIV infectionâwas identified in the early part of the decade. HIV/AIDS has had a great impact on society, both as an illness and as a source of discrimination.