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Saturday, October 10, 2026 · Riyadh
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Smoking and lack of exercise weaken immune system, expert warns

White blood cells are significantly weaker in smokers, making them more susceptible to viruses, says physiology professor Mohammed Al-Ahmadi.

Ajel News1 hour ago · 1 min read
Expert discusses smoking's impact on immunity on Saudi TV

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AI

Professor of exercise physiology Mohammed Al-Ahmadi said that white blood cells are significantly weaker in smokers, making them highly susceptible to any virus.

Speaking in an interview with Saudi TV, he added that both smoking and lack of physical activity weaken a person's immune system.

Al-Ahmadi also noted that it is very difficult for a smoker to go a month without repeatedly catching a cold or the flu.

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