IJR News — today's news from every sideGuides Cite Sleep, Ventilation, and Zinc for Cold and Flu Defense — Sep 27, 2026To reduce cold and flu risk, experts recommend vaccination, frequent handwashing, limiting close contact with sick people, and improving ventilation; adequate sleep, regular moderate exercise, and a balanced diet also support health. Evidence for supplements and other immunity “boosters” is limited, while strenuous exercise during illness or inadequate rest can be counterproductive.
Sam Okafor Getting plenty of sleep and fresh air has always kept my colds milder than any pill.