Is Henna Safe?
Is there risk of lead and PPD contamination of red and black henna?
Health and Nutrition Videos
Friday Favorites: Epigenetic Clocks for Testing Your Biological Age
Epigenetic clocks have become established as robust measures of chronological age, surpassing telomere length as the best age predictor.
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Detoxifying with Chlorella
Chlorella is put to the test for liver disease, cholesterol, and detoxifying carcinogens.
How to Treat Jet Lag with Melatonin-Rich Food
There may be a way to get the benefits of over-the-counter melatonin supplements without the...
Are Melatonin Supplements Safe?
Over-the-counter melatonin (“anti-gonad hormone”) supplements tend not to contain what they say they do, and...
How to Treat Jet Lag with Light
Use cheat sheets to figure out exactly when and how to treat jet lag using...
Does Coffee Affect Cholesterol?
New data suggest even paper-filtered coffee may raise “bad” LDL cholesterol.
How to Shop for, Handle, and Store Chicken
Poultry is the most common cause of serious food-poisoning outbreaks, followed by fish, then beef....
Is Electromagnetic Hypersensitivity Real?
There have been at least 46 studies involving more than a thousand people to see...
Smoking Marijuana vs. Using a Cannabis Vaporizer
Cannabis vapor has less tar, but may contain more ammonia. What happens to respiratory symptoms...
Effects of Smoking Marijuana on the Lungs
There is unequivocal evidence that regular cannabis smoking causes acute lung inflammation, but what are...
Benefits of Cabbage Leaves for Relief of Engorged Breasts
Cabbage is put to the test in a randomized controlled trial.
Benefits of Blueberries for the Brain
Blueberries can significantly improve cognitive performance within hours of consumption.
