We often think, wrongly, that we should not interrupt our meal by drinking, for fear that it will make us fat or that it will prevent the action of digestive juices. Indeed, drinking while eating does not dilute the digestive juices which can, therefore, act completely normally. What's more, small sips here and there during the meal allow you to eat more slowly, which facilitates the feeling of satiety. On the other hand, you should not drink water to bring down a food that you do not like more quickly, at the risk of feeling bad at the end of the meal.
Instead of preparing a healthy dish, we tend to think easy and think that the easiest way is to skip a meal. But this is false, not only does it not make you lose weight, but it is also counterproductive. Certainly, at the time, we can lose weight (a little) since our body draws reserves from the cells of the adipose tissue (yes, as we do not feed it, it manages on its own). The problem is that this weight, we inevitably take it back during the following meals. It is therefore better to reduce the portions and not skip meals.
Here again, a new received idea (and fortunately!). Well, let's note that bananas are among the most caloric fruits. But beyond that, the banana provides a feeling of satiety which makes it an ideal snack; the same cannot be said for our usual squares of chocolate (what do you mean, the whole wafer?). So the banana is an excellent alternative (3 times fewer calories than a chocolate bar anyway) but it should not be abused, in which case, yes, the risk of gaining weight cannot be excluded.
In fact, it depends on what we consumed just before. Taking a nap after a carbohydrate-rich meal is not a problem, it even makes it easier to fall asleep due to the sedative action of serotonin production (which increases with this type of meal). On the other hand, after a meal rich in fat, digestion is longer and more complicated and can disturb our sleep. Avoid!