Vitamin D has a hand in keeping your bones healthy, supporting your immune system, and promoting cardiovascular health—and given that nearly every cell in your body has binding sites for vitamin D, that’s probably just the tip of the iceberg,* according to functional nutrition dietitian Whitney Crouch, RDN, CLT. If your health care provider suspects you have a vitamin D deficiency or insufficiency, they will order a blood test that looks at your total serum 25-hydroxyvitamin D—or 25(OH)D—which is the form of vitamin D that circulates through your blood....

There are so many reasons people remain single even when they don’t want to be, ranging from unconscious self-sabotage to systemic barriers to simple, uncontrollable happenstance. There’s absolutely nothing wrong with prioritizing other parts of your life over dating, and if that’s just what’s most important to you at this time, own that and do it proudly! You get to decide what your priorities are, and your dating life can happen on the timeline that you choose....

There are so many reasons people remain single even when they don’t want to be, ranging from unconscious self-sabotage to systemic barriers to simple, uncontrollable happenstance. There’s absolutely nothing wrong with prioritizing other parts of your life over dating, and if that’s just what’s most important to you at this time, own that and do it proudly! You get to decide what your priorities are, and your dating life can happen on the timeline that you choose....

While it might appear to many to make logical sense not to reproduce, that doesn’t mean the idea is free from profound emotional impact. Can we coolly concede that the world is no longer a viable human habitat and get on with living out the rest of our lives as harmlessly as possible? I would say not, or at least not for many people. Perhaps counterintuitively, wealth and low birthrates often go together....

We all have nuanced circadian rhythms, unique sleep needs, and a host of other factors that contribute to how well (or not well) we’re sleeping. And the good news is, leading sleep researchers—and leading sleep products—are now setting the stage for everyone to achieve consistent, restful sleep. This is why in 2023, we can expect to see an uptick in people minding their sleep, and further, creating a sleep regimen that’s personalized to them....

But there’s something else that hasn’t been widely publicized: A properly executed ketogenic diet can help restore balance to out-of-whack female sex hormones. In my practice, I’ve also seen it mitigate weight gain, hot flashes, near-zero energy, low sex drive, bone loss, mood swings, and other troublesome symptoms associated with perimenopause, menopause, PMS, and post-menopause. Luckily, following a ketogenic diet makes your body more “insulin sensitive.” This means insulin is well-regulated, in balance, and used properly by your cells....

Though overfishing rates in U.S. waters have actually dropped recently thanks to stricter regulations, globally we’re still plucking more fish out of the ocean than can be replenished naturally. According to a 2018 report by the U.N., 33% of the world’s marine populations are currently overfished, and nearly 60% are at max capacity. Only 7% are being underfished. Unsurprisingly, the species whose futures are threatened by overfishing are the ones we love to eat the most—your salmons, tunas, halibuts, and the like—while smaller fish populations are less likely to be tapped out....