Rosemary has been used medicinally for centuries and today, we’re unpacking the healing potential of this holiday favorite. (Even Shakespeare knew rosemary had some major mental benefits: In Hamlet, Ophelia says, “There’s rosemary, that’s for remembrance: pray you, love, remember.”) In one 2017 study on 40 school-age children, the students in a room infused with rosemary oil scored 5 to 7 points better on a memory test. Separate research on adults2 supports these findings that rosemary essential oil can boost cognitive performance....

If your thyroid gland struggles to produce enough thyroid hormone—often as a result of chronic stress, gut issues, or poor diet—you can end up with hypothyroidism or an underactive thyroid. While true celiac disease affects only about 1% of the population, research in the last few years suggests that a lot of people are sensitive to gluten1. Gluten-sensitive people are significantly more likely to develop thyroid issues, possibly because gluten can damage your gut lining2, interfering with your hormones and causing inflammation that reaches your thyroid....

The Diagnostic and Statistical Manual, which therapists use to make mental health diagnoses, doesn’t group narcissism into different types, but some experts classify narcissists into one of three groups: A gaslighter might, for example, deny doing something they did, accuse you of behavior they themselves are guilty of, or call you oversensitive or dramatic when you confront them. You may be particularly susceptible to gaslighting if you’re a people-pleaser, empath, or codependent....

So, what can you do to ease sore, weary muscles and prevent excess soreness in the future? Let’s investigate. “Acute muscle soreness accompanies fatigue and occurs during and immediately post-workout,” he notes. “Overexertion and strenuous exercise often results in muscular pain, and the pain becomes most intense after 24 to 48 hours and then gradually decreases so that the muscle becomes symptom-free within three to four days. This pain at 24 to 72 hours post-workout is called DOMS....

If you’ve ever tried meditating—or anything remotely meditative, like a long run or sitting down to write—you’re familiar with watching your to-do list unfurl, seeing thoughts buzz by begging to be tended to, even experiencing an unprecedented amount of itches on your face as you start to transition from your outer world to the inner one. For most of us, the truth is that our inner landscapes don’t get the attention they deserve because our lives have infinite appealing distractions....

If you’re a coffee lover, chances are you’re not interested in parting with this morning ritual. But if you have a delicate stomach, you might find yourself in a love-hate relationship with this popular brew. For people with gut conditions such as irritable bowel syndrome (IBS), Crohn’s disease, or ulcerative colitis, coffee’s acidity may be particularly problematic, causing flare-ups and unpleasant symptoms such as cramping and diarrhea. For most generally healthy people, though, there are simple ways to make your morning coffee much more gut-friendly, thereby minimizing these uncomfortable issues....

So first, let’s dive into what exactly dandruff is. Then how you can better keep it under control with the correct lifestyle changes, products, hair care tips, and so on. “Dandruff causes an itchy, flaky scalp. Also known as seborrheic dermatitis, a form of eczema, it is caused by a yeast, Malassezia furfur,” says board-certified dermatologist Raechele Cochran Gathers, M.D. “The malassezia yeast is common, and people with seborrheic dermatitis are just a little more sensitive to it....