Ultimately it is our immune system to defeat the virus, rest and diet are the best way to protect our health

Quit smoking

COVID-19 is a novel respiratory disease that damages the alveolar membranes in the lungs. If you smoke and need a reason to quit, let this pandemic be your reason. Quitting smoking, which can moderate your risk, is the first thing you can do to improve your immune system.

Don't drink too much

Excessive drinking can put your immune system health at risk. The current U.S. Dietary Guidelines for Americans recommend drinking in moderation, with up to one drink per day for women and two drinks per day for men. Do not drink alcohol before going to bed, otherwise it will interfere with sleep.

Enough rest

Sleep can rejuvenate the entire body system, sleep at least six to eight hours a night, and maintain a regular bedtime and wake-up time, and try to stick to it every day.

Decompression

Stress can also affect sleep, and cortisol, a stress hormone that suppresses the immune system, is a great time to boost your immunity during the COVID-19 pandemic.

Keep exercising regularly

Aerobic exercise can make the immune system more efficient, it can reduce stress and relieve depression. Exercise can improve cardiovascular health, lower blood pressure, help with weight control, and prevent a variety of diseases, and develop aerobic exercise habits to boost immunity.

A comprehensive, balanced plant-based diet

Eating a well-rounded, balanced diet, such as the Mediterranean diet with whole vegetables, lean meats, and healthy fats, is one way people can improve their immune system. The bulk of your immune system is in the lining of your gut, so it's a good idea to support your gut and microbiome with plenty of good bacteria. Consider adding probiotic-rich foods like yogurt or fermented foods like kimchi, miso, and sauerkraut to your diet.