By Dr. Andrew Weil

Cold and flu viruses spread through airborn droplets from coughs and sneezes, and by touching surfaces where viruses have landed.

General preventive measures can be very effective and include washing your hands regularly, trying not to touch your eyes, mouth or nose (which could introduce the virus into your body), and doing your best to avoid contact with people who are sick.

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In addition, follow a healthy diet and stay well-hydrated, manage stress in healthy ways, get adequate sleep, and don’t smoke.

Daily doses of vitamin C, astragalus, garlic, and probiotics may also help support your immune system. If you do get sick, stay home until you are better – don’t spread those viral droplets around the office.

Andrew Weil, M.D., is Founder and Director, Arizona Center for Integrative Medicine at the College of Medicine, University of Arizona, and Director of Integrative Health and Healing, Miraval Resort. He is a pioneer in the field of integrative medicine, which combines conventional medicine with alternative approaches. He received his medical degree from Harvard University. His new book is True Food: Seasonal, Sustainable, Simple, Pure.