In vertebrates, the immune system is considered the last line of defense against foreign invaders.It fights by destroying pathogens and tumor cells using mechanisms that constantly adapt to recognize and rid these disease causing cells.
Which is Better for Weight Loss? Some studies have found that low-carb diets are more effective for weight loss and fat loss than low-fat diets. A study published in 2014 in Annals of Internal Medicine showed that this was the case, even after a period of 12 months.
Though McDonald's may be on a health kick, some of its nutrient-enhanced meals are actually worse for you than junk food, according to CBC News. McDonald's new Kale salad is the most outrageous offender, with more calories, fat, and sodium than a Double Big Mac burger.