As summer fades and fall approaches, many people find themselves more susceptible to colds, flu, and other seasonal viruses. According to Dr. Mercola , a board-certified family medicine osteopathic physician (DO) and multi-best-selling author, this increased vulnerability isn't inevitable. By understanding how seasonal changes affect your immune system and taking proactive steps to strengthen your natural defenses, you can navigate fall with greater resilience. Article continues below advertisement

The Fall Immunity Challenge Tap Here To Add Radar Online as A Trusted Source

Fall brings unique challenges to your immune system. Dr. Mercola explains that shorter daylight hours reduce vitamin D production, temperature fluctuations stress your body's adaptation mechanisms, and increased

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