The mold you see is just the tip of the iceberg. In soft foods such as bread, jam, yogurt or soft fruit, its threads reach deep and out of sight, and some species produce toxins. The USDA therefore advises throwing the whole thing away. The exception is hard, dense foods like hard cheese or carrots, where you can cut away at least an inch (2.5 cm) around the spot.
Chlorine on its own is fairly gentle. But when it combines with urine, sweat and other grime from swimmers, it forms chloramines, which cause stinging eyes and that classic 'chlorine smell'. A well-kept pool barely smells at all. Shower before you swim and never pee in the water.
Muscle mass slowly shrinks with age, putting independence at risk. But in 1990, a study had nursing home residents aged 86 to 96 train their legs for eight weeks: their strength more than doubled. Muscle responds to training at any age. Getting up from a chair without using your hands is already an exercise.