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It’s not clear exactly what causes schizophrenia, but we know that it’s associated with changes in the way the brain uses dopamine, and dopamine also plays a role in Parkinson’s disease, ADHD, and restless legs syndrome. It’s also possible to have low dopamine levels without a diagnosed brain disorder. As neuroscientist and psychiatrist Daniel Amen, M.D., explained previously to mbg, symptoms of low dopamine might look like:
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Ranked as the ninth leading cause of mortality globally and contributing to more than one million annual deaths, it’s no wonder that the prevention and management of Type 2 diabetes, blood glucose spikes, and insulin resistance is a high priority in public health.
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Vitamin D receptors are found in just about every cell in the human body, which means vitamin D has a critical role in brain, bone, muscle, hormone, digestive, and heart health (to name a few).* Seriously, the wide range of vitamin D benefits is nothing short of astonishing.
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These sun-confounding factors include time of day, time of year, location, skin tone, wearing SPF, air pollution, and even age. Combined with the reality of our lives—which are mostly spent indoors, these factors make getting enough D from the sun unrealistic.
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Hannah Frye is the Assistant Beauty Editor at mindbodygreen. She has a B.S. in journalism and a minor in women’s, gender, and queer studies from California Polytechnic State University, San Luis Obispo. Hannah has written across lifestyle sections including health, wellness, sustainability, personal development, and more.
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If bone health was vitamin D’s initial claim to fame, let’s call its role in immune health1 the thing that put this essential vitamin back on the map.* And while calcium absorption2 and immune response are fantastic ways for vitamin D to support our well-being, we shouldn’t sleep on the other amazing talents this vitamin has to offer.*
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Most U.S. adults fail to consume even small amounts of vitamin D on a daily basis – 93%1 to 100% by some estimates. Unsurprisingly, considering these staggering stats, many Americans are living with suboptimal vitamin D levels: 41% of U.S. adults2 are insufficient, and a whopping 29%2 are straight-up deficient.
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What you eat and drink can be the potential cause of autoimmunity, or the most nourishing influence in terms of helping to prevent or reverse autoimmunity. But what principles should you keep in mind when you eat for the long term? There are four main areas to address via nutritional modulation when you have an autoimmune disease: nutritional gaps, poor digestion, toxic backlog, and blood sugar spikes. Let’s dig into the importance of each:
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Have you ever noticed that your nails grow faster in the summer?
Nail growth is influenced by a variety of factors, including genetics, age, diet, and health. However, seasonal changes, particularly the transition from colder to warmer months, also play a significant role. During summer, increased daylight hours and more direct exposure to sunlight boost the body’s production of Vitamin D.
This essential nutrient is crucial not only for bone health but also for the promotion of nail growth. Vitamin D aids in the absorption of calcium, another key element that contributes to stronger and faster-growing nails.
Warmer temperatures in summer improve blood circulation throughout the body. Enhanced blood flow delivers nutrients more efficiently to nail beds, stimulating growth. The hands and feet, being the extremities, are particularly affected by changes in circulation, making nail growth more noticeable in these areas.
Summer often brings increased physical activity. From swimming to outdoor sports, the activities associated with warmer weather can also contribute to faster nail growth. Physical activity improves overall health, including circulation, which in turn affects nail growth.
The relationship between summer and nail growth is a prime example of how our bodies respond to the natural environment. The increase in growth rate during warmer months is a biological adaptation that underscores the body’s inherent connection to seasonal changes. While the exact increase in growth rate can vary from person to person, the general trend is a fascinating illustration of the body’s responsiveness to external factors.
For those interested in nail health and grooming, understanding the seasonal variation in growth rates can be beneficial. It may influence the frequency of nail care routines during different times of the year. Moreover, recognizing the importance of Vitamin D and overall circulation for nail health can encourage practices that support these factors year-round.
In summary, the faster growth of nails in summer is a multifaceted phenomenon driven by increased Vitamin D production, improved circulation, and higher activity levels. This seasonal variation not only highlights the body’s dynamic response to its environment but also offers practical insights for maintaining nail health.
Source: “How Fast Do Nails Grow? Contributing Factors and Tips for Growth” — Healthline
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WTF
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About 41% of U.S. adults have insufficient levels.
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Most adults aren’t meeting all of our micronutrient (think vitamin and mineral) recommendations1. And women under 50—more specifically those who haven’t reached menopause—are particularly prone to falling short on key nutrients vital to their reproductive years and longevity. This is true even for those eating a well-balanced diet.
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Considering clinical vitamin D insufficiency persists in almost half of the U.S., population (41 percent1, to be exact), there’s a pretty good chance you’re aren’t getting enough of the sunshine hormone. (You can take a blood test at the doctor or with an at-home kit to make sure.) But what are some telltale signs you need to prioritize your daily dose?
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“Diet fails us for this nutrient,” Ashley Jordan Ferira, Ph.D., RDN, mbg’s vice president of scientific affairs says in a TikTok video. “It would take 50 glasses of milk a day to get 5,000 IU of vitamin D3. Or, how about nine servings of salmon? That’s silly, right?”
And if you’re wondering if you can simply get enough of the “sunshine vitamin” by spending time outside on a sunny summer day, think again: “Sunshine, unfortunately, is equally variable,” Ferira says. “And also risky.”
The thing is, a lot of U.S. adults are vitamin D deficient or insufficient (29% and 41%, to be exact). And if they think food and sunshine alone are enough to move the needle on their vitamin D status, they may be in for a rude awakening when they get their test results back.
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Morgan Chamberlain
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Morgan Chamberlain is a supplement editor at mindbodygreen. She graduated from Syracuse University with a Bachelor of Science degree in magazine journalism and a minor in nutrition. Chamberlain believes in taking small steps to improve your well-being—whether that means eating more plant-based foods, checking in with a therapist weekly, or spending quality time with your closest friends. When she isn’t typing away furiously at her keyboard, you can find her cooking in the kitchen, hanging outside, or doing a vinyasa flow.
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Morgan Chamberlain
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