31、The free radicals also try to attack the hunger neurons, but these are protected by the uncoupling protein 2 (UCP2).

32、The body also removes and repairs some damaged macromolecules, but often the sheer volume of free radicals overwhelms the repair system.

33、Reducing the time spent in sunlight helps minimise exposure to UV radiation, which creates free radicals known to damage and age tissues prematurely.

34、Free radicals develop when atoms in the body's cells have unpaired electrons, which can lead to damage to different parts of the cell, including DNA.

35、The effects of quartz on membranous fluidity labelled with DPH and ANS and the production of oxygen free radicals of alveolar macrophages were studied in vitro.

36、These compounds, which include vitamins a, c, and e, selenium, beta carotene, and folate, fight free radicals, unstable compounds thought to damage cells and contribute to aging.

37、Free radicals also come from outside sources, such as smoking, environmental pollution, and synthetic chemicals that are added to our water and food. Some tips for living longer and anti-aging.

38、the process of ionizing; the formation of ions by separating atoms or molecules or radicals or by adding or subtracting electrons from atoms by strong electric fields in a gas.

39、As Dr Glancey says, food such as doughnuts give you a sudden 'massive rush of sugar' - the body can't eliminate this sugar effectively, and in the long run that sugar creates free radicals.

40、The results show that there are two different pathways for the reaction of NH2 radicals with ozone. One of them has very low activation energy, so it happens easily.

41、Iron plays a very important part in the reactions in our cells that produce damaging free radicals, which glom onto cell membranes and DNA, and may translate into aging the cell.

42、"Preservatives such as tocopherol (vitamin E), propyl gallate, butylated hydroxytoluene (BHT), and butylated hydroxyanisole (BHA) prevent rancidity in fats, oils, and fatty foods. In the body, antioxidants such as vitamins C and E and selenium may reduce oxidation caused by free radicals. "