The tax law has allowed various methods of depreciation over the years. The Tax Reform Act of 1986 changed the Accelerated Cost Recovery System (ACRS) that was used before, to the Modified Accelerated Cost Recovery System (MACRS), which extended the useful life of assets over the ACRS system.
2. Chronic Fatigue. Chronic fatigue is caused by Vitamin B12 deficiency and is a persistent feeling of tiredness and weakness in the body. 3. Weight Loss. Weight loss occurs when the body does not have adequate amounts of B12.
1 High-dose vitamin C has been studied as a treatment for patients with cancer since the 1970s (see Question 2). 2  Laboratory studies have shown that high doses of vitamin C may slow the growth and spread of prostate, pancreatic, liver, colon, and other types of cancer cells (see Question 5).ore than fifty years ago, a study suggested that cancer was a disease of changes in connective tissue caused by a lack of vitamin C. In the 1970's, it was proposed that high-dose ascorbic acid could help build resistance to disease or infection and possibly treat cancer.