Side effects from radiation therapy generally involve the areas treated, including tissue damage or scarring, or there may be sterility as result of radiation to the abdomen and pelvis. Radiation therapy may increase the susceptibility to other cancers, and it is associated with an up to 80% failure rate... Full Text

Manganese may help with some symptoms of Parkinson's disease such as muscle rigidity and twitching...
Research shows that phytosterols such as beta-sitosterol may help normalize the function of natural killer cells and T-helper lymphocytes...
Iron deficiency may be suspect with some forms of ADHD. 84% of children with ADHD were found to have abnormally low levels of ferritin...
A high intake of B Vitamins can trigger heart palpitations, HBP, major complications in patients with congestive heart disease...