Lipids are not only one of the main sources of energy for cells, but are also an important component of various cell membrane structures. Excess lipids, despite the potential to accelerate atherosclerosis, can help maintain and improve the body’s immunity, reduce the incidence of malignancies, and recent studies have found that they can also delay the development of a variety of lethal central nervous system degenerative diseases. A recent finding in Germany suggests that obese patients with motor neuron disease live 18 months longer than lean patients, and that giving a high-fat diet can slow the progression of the disease more effectively than any current medication. Other diseases that require a high-fat diet include Alzheimer’s disease, which is less common in fat people than in thin people, and small amounts of alcohol can help improve the symptoms of these diseases. Lipid-lowering drugs may only be somewhat effective for atherosclerosis. Severe atherosclerosis needs to be treated with lipid-lowering drugs, and for obese patients with diabetes, hypermetabolic syndrome, and various muscle diseases, appropriate weight loss is beneficial for disease control. Other cases can not blindly with lipid-lowering drugs or weight loss, otherwise interference with the normal fat metabolism of human cells, not only damage the cell membrane, leading to damage to the liver and skeletal muscle, inducing serious immune necrotizing muscle disease; and increase the possibility of the onset of various malignant tumors and many central nervous system degenerative diseases, fashionable bonny beauty may be more likely to become Alzheimer’s patients in the future. In addition blindly with lipid-lowering drugs can also aggravate the development of diabetes, making it more difficult to control blood sugar. It makes sense to eat something good when you’re sick. As long as you are not overly obese, it is good to enhance nutrition when you are not sick, and it is better to be strong and plump than to be thin and bony. Blindly lowering fat and losing weight will do more harm than good.