Short Wave : NPR

Key Points:

• Scientists identified a protein called dermicidin in the saliva and nasal passages of certain people who never get flu symptoms; this protein blocks the flu virus and other viruses, suggesting potential for new antiviral treatments like nasal sprays.
• A UK study of 96,000 people found that just 15 to 20 minutes of vigorous exercise per week—such as quick stair climbing or short bursts of running—significantly reduces the risk of serious diseases, challenging previous guidelines that recommended longer exercise durations.
• Experts emphasize that while vigorous exercise is beneficial, any amount of physical activity is good for health, and even brief bursts of high-intensity effort can provide substantial benefits.
• A global analysis of food fortification programs showed they prevent approximately 7 billion micronutrient deficiencies worldwide, demonstrating the large-scale health impact of adding essential vitamins and minerals to staple foods like salt, cereal, and flour.
• Increasing compliance with food fortification standards could further reduce nutrient gaps, with examples including U.S. states like California and Alabama mandating folic acid fortification in corn masa flour to prevent birth defects.