World-renowned surgeon Michael Nusbaum, MD FACS · FASMBS  ·  25,000+ patients  ·  Call (973) 998-9833
10 Flu Myths Your Doctor Wishes You Would Stop Believing
FLU
The Nusbaum Journal · Wellness

10 Flu Myths Your Doctor Wishes You Would Stop Believing

Separating fact from fiction on flu shots, cold weather, hand hygiene and how a strong immune system really protects you.

Key Takeaways
  • The flu shot cannot give you the flu — it contains inactivated virus or no live virus at all.
  • Cold weather doesn't directly cause the flu, but stress and a weakened immune system make you more susceptible.
  • Hand-washing is a "do-it-yourself vaccine" and one of the most effective ways to stop the spread.
  • It's never too late to get vaccinated — flu season can run well into spring.
  • A resilient immune system depends on sleep, stress control, hydration and balanced nutrition.
Wellness

Flu myths spread almost as fast as the virus itself — and believing them can leave you unprotected. Michael Nusbaum, MD FACS · FASMBS, of Cedar Knolls, NJ, sets the record straight on the most common misconceptions, starting with the biggest truth: it's never too late in the season to get your flu shot.

The Flu Myths Worth Debunking

There's a lot of misinformation about what the flu is, how it spreads and whether the vaccine works. Here are the misconceptions Dr. Nusbaum hears most often:

What Actually Protects You

"Proper hand hygiene is the most important means of preventing the spread of infection," Dr. Nusbaum notes. "Hand washing is like a do-it-yourself vaccine that stops the spread of germs." There's no silver bullet that makes you immune, but a few habits dramatically lower your risk:

The CDC reinforces that everyday preventive actions — vaccination plus good hygiene — remain your best defense against influenza.

Support Your Immune System Year-Round

Because stress and run-down health make you more vulnerable, resilience starts long before flu season. Dr. Nusbaum emphasizes the fundamentals: quality sleep, hydration, balanced nutrition and stress management. When patients want extra support, our medspa and wellness services can help fill the gaps.

A strong body is a resilient body. If you're feeling perpetually run-down, schedule a wellness visit at our Cedar Knolls office.

Michael Nusbaum, MD FACS · FASMBS
Medically reviewed by Michael Nusbaum, MD FACS · FASMBS
Founder & Medical Director · 25+ Years · 25,000+ Patients

Board-certified surgeon and pioneer of one of the country's most successful medical weight-loss and body-contouring programs, based in Cedar Knolls, Morris County, and serving all of New Jersey.

10 Flu Myths Your Doctor Wishes You Would Stop Believing: Frequently Asked Questions

Can the flu shot give me the flu?

No. The flu vaccine contains an inactivated (killed) virus or no live virus at all, so it cannot cause influenza. Mild soreness or a low fever simply means your immune system is building protection.

Does cold weather cause the flu?

Not directly. You catch the flu from the influenza virus, not cold air. However, stress and a weakened immune system — more common in winter — can make you more susceptible if you're exposed.

Is it ever too late to get a flu shot?

No. Flu season can extend into spring, so getting vaccinated later still provides valuable protection. The best time is early fall, but any time is better than skipping it.

How can I strengthen my immune system?

Prioritize sleep, hydration, balanced nutrition and stress management. Some patients also benefit from IV vitamin therapy or thyroid testing if fatigue persists. Ask Dr. Nusbaum's team what's right for you.

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