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An improvement in the immune system process would not be a good thing. It would mean your immune system was overactive, and overactive immune systems can lead to some problems.  Don't worry! Here are some basic steps you can take to ensure it is normal and thus functioning.

Get enough sleep.  It makes your body easier to get sick, as does an irregular sleep schedule. A single night of only 4 to 5 hours of sleep causes your natural killer cells to drop by 70%. Increase your chances of fending off illness by allowing yourself a solid 7 to 9 hours of shut-eye nightly.

Eat well. Fuel your body by eating a wide range of plant-based, fiber-rich, and colorfully varied foods. There is no strong scientific evidence for any specific type of food being linked to better immune function, so you can ignore the supplements (增补药) being marketed toward the coronavirus in particular.

Keep exercising. Exercise has many benefits. It helps to maintain immune health by getting white blood cells moving through the body.  If you're already feeling ill, however, you can continue exercising as long as your symptoms are above the chest. If your conditions are further down, take a break for a few days.

 This advice is everywhere these days, but don't stop paying attention to it. Keep washing your hands! It's the simplest and most effective protection against catching unwanted bacteria. Think about reducing places for bacteria to hide, such as under long fingernails and rings, either by wearing fewer of them or including in your hand-scrubbing.

A. Practice good health habits.

B. Bury your bad habits in the water.

C. You might want it to function normally.

D. It boosts feelings of well-being and happiness.

E. Little sleep is like a giant welcome mat for illnesses.

F. Focus on getting your nutrition from whole foods instead.

G. You are going to be good at containing and fighting it off.

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