Dr. Joseph Mercola - Take Control of Your Health

Arginine does more than help build proteins — your cells also need this amino acid to produce immune-alert proteins that help T cells recognize infected or abnormal cells
When arginine became scarce, the cellular machinery responsible for building these immune-alert proteins stalled, leaving fewer warning signals available to help the immune system detect threats
In mice, increasing dietary arginine reduced colon tumor formation and improved outcomes in influenza and SARS-CoV-2 infections, benefits that disappeared when researchers disabled the immune pathway arginine supports, confirming the effect wasn't coincidental
Whole foods are the preferred starting point for maintaining healthy arginine intake, with grass fed beef, lamb and watermelon providing options without relying automatically on supplements
Adequate protein, sufficient carbohydrates and lower linoleic acid intake support the broader cellular environment your immune system needs to produce energy, build proteins and respond effectively to threats

Women with polyendocrine metabolic ovarian syndrome (PMOS), the condition formerly called polycystic ovary syndrome (PCOS), showed a more than fourfold higher rate of artery disease in a large U.S. study based on more than two decades of health insurance records
The analysis included more than 413,000 women with PMOS and over 2 million women without the condition, with an average age of just over 31, showing that cardiovascular risk can emerge during the reproductive years
High blood pressure, high cholesterol, Type 2 diabetes, and obesity explained only about 36% of the association, suggesting that PMOS itself may be an important cardiovascular risk-enhancing factor
The recent change from PCOS to PMOS reflects a broader understanding of the condition as a multisystem endocrine and metabolic disorder rather than one centered on ovarian cysts
Lifestyle strategies that address the metabolic patterns accompanying this diagnosis include eating adequate whole-food carbohydrates, cutting seed oils high in linoleic acid, regular walking and strength training, and limiting exposure to hormone-disrupting chemicals

Severe flu season can affect millions, but symptoms such as fever, tiredness, swelling, and mucus often show that your immune system is working to fight the infection inside the body
A large systematic review found zinc lozenges may modestly shorten common cold and flu duration by 2.4 days
Honey, propolis, royal jelly, and other bee products contain natural compounds that may act against viruses, but most evidence still comes from laboratory and animal studies rather than human trials
Tea tree oil did not kill the flu virus directly, but lab tests found that it interrupted an early step the virus needs to multiply inside infected cells
Fluids, rest, broth, honey, salt water, steam, and moist air ease symptoms, while diet, exercise, and sunlight support health. We also review elderberry, quercetin, zinc, vitamin A, vitamin C, NAC, vitamin D, echinacea, and andrographis

Breaking up long periods of sitting with brief movement may improve certain thinking skills, with the strongest evidence showing benefits for memory and executive function
Walking and other gentle activities are enough to interrupt prolonged sitting, so supporting your brain throughout the day doesn't require repeated strenuous workouts
Just four three-minute activity breaks during 80 minutes of sitting helped adolescents maintain the brain's oxygen-rich blood response during a demanding memory task
Some improvements in working memory, attention and reaction speed persisted for up to 30 minutes after activity ended, suggesting the benefits don't necessarily disappear when you sit back down
Regular movement breaks complement rather than replace exercise, so aim to interrupt sitting throughout the day while gradually working toward an hour of daily walking and strength training twice a week

Vitamin K2 helps direct calcium into your teeth and jawbone, supporting stronger enamel and the tissues that keep your teeth firmly in place instead of relying on calcium intake alone
People with the lowest vitamin K2 blood levels had the most advanced periodontal disease, including greater gum bleeding, deeper pockets around the teeth, more bone loss and faster disease progression
Healthy teeth depend on more than brushing and flossing because they constantly lose and replace minerals, making your daily food choices an important part of maintaining your smile
Natto, aged cheeses such as Gouda, pastured egg yolks and grass fed organ meats are among the richest natural sources of vitamin K2, yet these foods are uncommon in many modern diets
Pairing vitamin K2 with vitamin D3 helps your body absorb calcium and direct it into your teeth and bones, supporting long-term oral health from the inside out