In the cold season, it's the best time to supply nutrition by diet. This will improve the nutritional status, and enhance immune function. It can show the effects which cannot replaced by drugs.
Eat more fruits. Except for pears, apple is also a very healthy fruits. Different fruits have different characteristics. People should choose different fruits according to different season and age.
Eat more honey. On the one hand honey bring energy to the body, while it has a large number of trace elements, like iron, calcium, tin, manganese and so on. Half an hour to an hour each day before going to sleep, eat a cup of honey yogurt can help to sleep.
Eat more food to increase energy. Winters are very cold, it's better to eat three high food, high calorie, high protein and high vitamins. That's to eat more carbonate compounds eat. And also eat some protein, such as eggs, milk, meat, and duck and so on.