The truth about immune-boosting supplements

Plus: More proof that nature is good for us; algae is the new kale; plummeting sperm counts  ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌  ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌  ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌  ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌  ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌  ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌  ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌  ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌  ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌  ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌  ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌    ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌  ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌  ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌  ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌  ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌  ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌  ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌  ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌  ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌  ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌  ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌  

 

YOUR BRAIN NEEDS NATURE VIEW ONLINE

YOUR BRAIN NEEDS NATURE

YOUR WEEKLY CHECKUP

This week: What you need to know about vitamin C and zinc supplements; why you should start eating algae; some parts of nature are more therapeutic than others; why sperm counts are plummeting so far, so fast.

PHOTOGRAPH BY PETE MULLER, NAT GEO IMAGE COLLECTION Can you really 'boost' your immunity with supplements? Increasing your intake of zinc and vitamins C and D during winter isn’t a magic bullet. Here’s what the science says about the most commonly touted interventions. SUBSCRIBER EXCLUSIVE WHAT TO EAT, WHEN: Salmon for breakfast? Why eating the right foods at the right times is the key to health +

PHOTOGRAPH BY JUERGEN FREUND, NATURE PICTURE LIBRARY Is algae the new kale? As the global population inches toward 10 billion and climate change threatens existing food security, versatile, nutritious algae is entering the stage. A 'FLAVOR BOMB' 8 BILLION AND COUNTING: The human population just hit a new milestone. Now what? +

PHOTOGRAPH BY JAY DICKMAN, NAT GEO IMAGE COLLECTION What happens to your brain when you see a bird in nature? A new study has surprising insights into how spending time outside affects our wellbeing—and which parts of nature may be more therapeutic than others. SUBSCRIBER EXCLUSIVE WE'RE WIRED TO BE OUTSIDE: How science is demonstrating what we intuitively know +

MICROGRAPH BY DR TONY BRAIN, SCIENCE PHOTO LIBRARY Sperm counts worldwide are plummeting faster than we thought "We may cross a tipping point when most men will be sub-fertile," says one expert. Here are environmental and lifestyle factors that could increase a man's risk. SUBSCRIBER EXCLUSIVE COVID AND MEN’S SEXUAL HEALTH: The virus can cause erectile dysfunction +

CORONAVIRUS UPDATE

NG STAFF Pfizer is testing a new vaccine that targets T cells Although they don’t prevent an infection, T cells can clear the virus by killing infected cells. The new COVID-19 vaccine is designed to combat a series of new variants, like BN.1, which the CDC recently began tracking. TRACKING COVID IN THE U.S.

What's the difference between RSV, the flu and COVID-19? (Washington Post) COVID-19 can ruin your sleep in many different ways—here's why Will COVID boosters prevent another wave? Scientists aren't so sure. (New York Times) Eating disorders in young people skyrocketed during the pandemic, study shows (CNN)

MORE HEALTH NEWS

PHOTOGRAPH BY CRAIG PARRY, NATIONAL GEOGRAPHIC FOR DISNEY+ To uncover the secrets of longevity, Chris Hemsworth put his body on the line In his new Nat Geo series, Limitless, the actor dangles from a rope high above a canyon and surfs frigid waters—all to test extreme strategies for living longer. READ ON

Blood tests for Alzheimer's are here. Here's what you need to know. (Washington Post) Is marijuana more harmful to your lungs than cigarettes? A study suggests it may be. (USA Today) Earth now has 8 billion people—and counting. Where do we go from here? Flu and colds are back with a vengeance—why now? (Nature) More than 1 billion young people could be at risk of hearing loss, a new study shows (NPR) FDA approves first treatment to delay onset of Type 1 diabetes (CNN)

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