Over-the-counter melatonin (“anti-gonad hormone”) supplements tend not to contain what they say they do, and the contaminants could be dangerous. If you’re crossing three or more time zones during a journey and plan to stay at your destination for a week or more, long...

Use cheat sheets to figure out exactly when and how to treat jet lag using light exposure and light avoidance at specific times of the day, based on which direction you’re going and how many time zones you cross. “Jet lag is a blessing to circadian biologists because...

My next webinar is on vitamin K. It’s been touted for bone, brain, and heart health, but have vitamin K supplements been shown to help? To complicate matters, there are multiple types of vitamin K: Vitamin K1 is concentrated in greens, and a type of vitamin K2 is...

New data suggest even paper-filtered coffee may raise “bad” LDL cholesterol. In my video from more than a decade ago called Is Coffee Bad for You?, I explained that the “cholesterol-raising factor from…coffee does not pass [through] a paper filter.” As I discuss in my...

Poultry is the most common cause of serious food-poisoning outbreaks, followed by fish, then beef. But aren’t people more likely to order their burgers rarer than their chicken sandwiches? The primary location where outbreaks occur is the home, not restaurants. In...

There have been at least 46 studies involving more than a thousand people to see if those suffering from electrosensitivity are deluding themselves. “During the past decade a wide range of symptoms has been reported to be triggered by exposure to RF-EMF,” the...

Cannabis vapor has less tar, but may contain more ammonia. What happens to respiratory symptoms when regular users of joints, blunts, pipes, and bongs switch to a vaporizer? There are many ways people inhale marijuana, but most smoke it in a bowl, pipe, joint, or...

There is unequivocal evidence that regular cannabis smoking causes acute lung inflammation, but what are the long-term consequences? “There is unequivocal evidence that habitual or regular marijuana smoking is not harmless and causes respiratory symptoms and airway...

Cabbage is put to the test in a randomized controlled trial. My video Benefits of Cabbage Leaves for Relief of Engorged Breasts opens with a photo published in the British Medical Journal of a woman with a cabbage leaf taped onto her knee to help with her...