However the trend of substituting sweetened drinks for milk has been found to lead to excess weight gain. Legal
Some jurisdictions use laws and regulations in an effort to steer children and parents towards making healthier food choices. Two examples are calorie count laws and banning soft drinks from sale at vending machines in schools. In the United Kingdom the Obesity Health Alliance has called on whichever party wins the general election to take measures to reduce childhood obesity, for example by banning advertisements for unhealthy foods before 9:00 pm and banning sports sponsorship by manufacturers of unhealthy foods. The failure of the present UK government to cut sugar, fat and salt content in foods has been criticised. Health experts, the health select committee and campaigners described Conservative plans over childhood obesity as, "weak" and "watered down". Physical activity
Physical inactivity of children has also shown to be a serious cause, and children who fail to engage in regular physical activity are at greater risk of obesity. Researchers studied the physical activity of 133 children over a three-week period using an accelerometer to measure each childs level of physical activity. They discovered the obese children were 35% less active on school days and 65% less active on weekends compared to non-obese children. Physical inactivity as a child could result in physical inactivity as an adult.
This treatment alone is not wholly effective, and many people still experience other symptoms such as lung disease and noninfectious inflammatory symptoms. This treatment replenishes Ig subtypes that the person lacks and is given at frequent intervals for life, and is thought to help reduce bacterial infections and boost immune function. Before therapy begins, plasma donations are tested for known blood-borne pathogens, then pooled and processed to obtain concentrated IgG samples. Infusions can be administered in three different forms: intravenously (IVIg), subcutaneously (SCIg), and intramuscularly (IMIg). The administration of intravenous immunoglobulins requires the insertion of a cannula or needle in a vein, usually in the arms or hands. Because highly concentrated product is used, IVIg infusions take place every 3 to 4 weeks. Subcutaneous infusions slowly release the Ig serum underneath the skin, again through a needle, and takes place every week. Intramuscular infusions are no longer widely used, as they can be painful and are more likely to cause reactions. People often experience adverse side effects to immunoglobulin infusions, including:

swelling at the insertion site (common in SCIG)
chills
headache
nausea (common in IVIG)
fatigue (common in IVIG)
muscle aches and pain, or joint pain
fever (common in IVIG and rare in SCIG)
hives (rare)
thrombotic events (rare)
aseptic meningitis (rare, more common in people with SLE)
anaphylactic shock (very rare)In addition to Ig replacement therapy, treatment may also involve immune suppressants, to control autoimmune symptoms of the disease, and high dose steroids like corticosteroids. In some cases, antibiotics are used to fight chronic lung disease resulting from CVID.