With the skin, hair, nails, and energy of someone half her age, Louise showed me how she lived her life — and I paid attention. She’s a former model, so of course I asked for her beauty secrets. Here are her favorite tips: After learning all the “rules” of staying young, fit, and healthy, it wasn’t until I channeled my inner 14-year-old with Louise that I began to experience a new level of health and energy....

Histamine has other roles too, like helping with digestion, wound healing, and nerve signaling in the brain1. Because of this, it’s important to have some, but problems arise when you’re exposed to too much or develop a reaction to normal amounts. A histamine intolerance develops when the amount of histamine that accumulates in your body is greater than the amount of histamine your body can eliminate. Having a histamine intolerance doesn’t mean that you’re allergic or sensitive to histamine; it simply means that there’s too much in your body....

There’s some precedent for this belief, too. Farmers have relied upon the moon’s phases for guidance on when to plant crops for optimal growth, dating as far back as the 1800s. (See the Farmer’s Almanac.) Lunar hair care simply applies the same planetary principles to us—specifically, to our hair. “The pull of the full moon and new moon creates a healthier, more productive garden. This is the same approach we take in lunar hair care,” says Stefani Padilla, a hairstylist and shaman....

A popular sleep aid, melatonin’s job is to help regulate the circadian rhythm and keep the sleep-wake cycle on track. But if you frequently take melatonin or have recently tried it to get on a sleep schedule, you might find it’s not as effective as it should be. Here’s why and what to do about it. “Melatonin is also referred to as the ‘hormone of darkness,’ because it’s produced by the pineal gland in response to low light, like the evening sunset....

I saw these six weeks as a way to see how tough I was, how much willpower I had. After college I took the opposite approach. I decided to add something instead of giving something up. Maybe it was getting older, but I longed for more of a self-improvement challenge instead of a self-deprivation challenge. Last year, I decided I would do yoga every day for six weeks. I practiced at most once a week and enjoyed the class I went to but rarely thought to do it on my own....

Neck wrinkles, neck lines, or “tech neck” (whatever you want to call it) can either look like deeper horizontal lines that wrap around like a choker or smaller, thinner, lighter lines that are more prevalent on the sides. Why do we get lines here, and what can you do about it? Well, some of the reasons you may find lines here are your classics, while others are entirely modern. As for solutions, we have you covered there, too....

But flipping over the package revealed that this seemingly innocent cookie had 26 grams of total carbs. What gives? Here, we asked some nutrition experts for their thoughts on net carbs, whether it ever makes sense to count them (as opposed to total carbs), and what might be more important to focus your attention on while sticking to a low-carb diet. So, depending on who you ask, you might get a slightly different definition on how net carbs are actually calculated....