In general, the best advice to give a landlord is to repair a problem with a rental property as soon as possible. Heating and plumbing problems, because of their unique nature, should be handled within 24 hours of learning of the issue.
Know your portions. Following a low sugar diet requires some diligence in knowing how much you should be eating. In general, most people should consume 2 fruits (or 2 cups) and at least 3 cups of veggies per day. On average 1 serving of fruit contains 15 grams of sugar.
Eating or drinking too much sugar curbs immune system cells that attack bacteria. This effect lasts for at least a few hours after downing a couple of sugary drinks. Eat more fruits and vegetables, which are rich in nutrients like vitamins C and E, plus beta-carotene and zinc.