12-18 years: Teen | Nemours Blog | Expert Guidance on Children's Health and Wellness

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12-18 years: Teen

Mother and daughter sit together on a bed holding hands as they have a supportive conversation.

PCOS Is Now Called PMOS: What You Need to Know

Parents with teen daughters often describe the same experience: their daughter receives a diagnosis of polycystic ovary syndrome (PCOS), and suddenly a constellation of symptoms — irregular periods, persistent acne, unexpected weight changes — finally has a name. There’s relief in that moment, but still some confusion. And now, you may start hearing a new name: polyendocrine metabolic ovarian syndrome (PMOS). This new name is far more than a simple rebranding, however. It signals a profound evolution in how clinicians understand what’s actually happening in the bodies of millions of girls and women living with this condition. For parents especially, the new name can help make sense of symptoms that may have felt disconnected from one another. Whether your daughter has already received a PCOS diagnosis or you’re still searching for answers, here’s what this change means, and what you need to know. Why is PCOS now called PMOS? For […]

Cute child with a basket of organic vegetables

Vegan and Vegetarian Diets for Kids: A Parent’s Guide

If you’ve been following the conversation around plant-based diets for children, you may have noticed something significant happened in 2025. The Academy of Nutrition and Dietetics — one of the world’s largest and most respected organizations of nutrition professionals — updated their position on vegetarian and vegan diets, and the change has sparked considerable discussion in the plant-based community. What does this change actually mean for families raising plant-based kids? Has the science changed, or just the messaging? And most importantly, what should parents take away from this shift? Let’s break down what happened and explore what this means for your family’s plant-based journey. Why do people choose to follow plant-based diets? There are several reasons why someone may choose to follow a vegetarian or vegan diet, including religious reasons, health reasons, preferences or tolerances, environmental reasons and sustainability, and animal rights. There are also health benefits associated with plant-based […]

A Touching Portrait of a Mother and Her Teenage Son Sharing a Warm Hug Outdoors, Highlighting Their Close and Loving Relationship.

The HPV Vaccine: Safety, Benefits, and Common Questions From Parents

Every year, 13 million Americans — including teenagers — contract HPV. According to the Centers for Disease Control and Prevention (CDC), nearly every sexually active person will get an HPV infection at some point in their life. Most infections clear up, but some persist and develop into cancer. The HPV vaccine can prevent this, yet many parents remain uncertain about whether or not to vaccinate their children. For some, it’s fear of side effects. For others, it’s concerns about why it needs to be given so young, and even the implication of saying yes. If you’re a parent trying to make the best decision for your child, here are answers to the most common questions and concerns about the HPV vaccine. What is HPV? HPV (human papillomavirus) is a group of viruses transmitted through skin-to-skin contact, such as vaginal, anal, or oral sex. Some strains of HPV cause warts, and […]

Two little girls are having a water break on the running track at athletics club. One girl is standing with her hands on hips, the other is taking a big gulp of water from bottle.

Nutrition, Hydration, and Recovery for Young Athletes

Supporting a growing athlete starts with understanding one key principle: performance nutrition isn’t about exotic supplements or complicated meal plans. The good news for parents of young athletes is that fueling your competitor is simply about eating the right balance of quality foods for the right activity — from training to post workout recovery to the big game. While athletes do need strategic nutrition to support their performance, the foundation is the same balanced, wholesome eating that benefits everyone in your family. Sports nutrition is really just smart, consistent healthy eating — with a few key timing adjustments. Building Blocks of Sports Nutrition Carbohydrates: The Primary Energy Source for Young Athletes Carbohydrates are found in foods like pasta, rice, bread, cereal, fruits, vegetables, and dairy. They are the body’s preferred source of energy during a workout. During digestion, carbohydrates are broken down into sugar and used immediately for energy, while […]

Teenage girl sitting on the floor and scrolling social media on a smartphone.

Tips for Navigating Social Media With Kids and Teens

As the world changes and technology develops, kids have more and more access to the internet and social media. In fact, 50% of 11-year-olds have a cell phone and upwards of 90% of 14-year-olds have one. It can be incredibly challenging to figure out how to navigate tech, especially when many parents of teens didn’t even have social media to use at that age. But there’s no opting out of dealing with social media for teens. As a parent, you may have read some of the recent books and articles about the dangers of creating anxiety or affecting teen mental health by allowing kids to have phones. The data is pretty clear that kids who have increasing use of social media, especially Snapchat, tend to have higher levels of depression and anxiety. Parents are looking for answers to understand, and somehow remedy: How does social media affect mental health? Still, […]

Close up of a calm young man lying in a tanning bed and having protective glasses on his eyes to protect them from UV light

Skip the Bed, Save Your Skin: A Guide to Safer Sun Choices

Many teens enjoy how they look with a fresh tan. To keep that glow year-round, some turn to tanning beds believing it’s a safer or easier option than sunbathing. But here’s the truth: research shows that tanning beds are actually more harmful than natural sun exposure. How Tanning Beds Work and Their Risks Tanning beds use florescent lights to emit ultraviolet (UV) radiation that darkens the skin. The UV exposure stimulates melanocytes — cells in the skin that produce melanin, the pigment responsible for tanning. While it may seem like a simple process, tanning beds expose the skin to high levels of UVA and UVB radiation. While early detection is important, prevention is key. Just 10 minutes in a tanning bed exposes your teen’s skin to concentrated UVA and UVB rays that are often much stronger than natural sunlight — these rays penetrate deep, damaging the DNA in skin cells. […]

Two happy female high school students standing in school corridor against blue lockers and using mobile phone.

Mind and Body Wellness Tips for Kids: Thriving At School and Beyond

Back to school season is here, and if you’re like many parents, you’re juggling multiple kids across different age groups. Going back to school can be tough, but not always for the reasons adults might think. While you’re busy checking school bus routes and counting tissue boxes, their concerns are a roller-coaster of worries deep and shallow — from academic pressure to fitting in during the back-to-school dress to impress parade. It’s important to make sure each child is ready for the new year by creating a foundation at home for their social, emotional, mental, and physical wellness. Physical Wellness Tips for School-Aged Kids While academics are crucial, physical wellness plays a significant role in a child’s overall health and ability to learn. Most families schedule their children’s annual physical wellness exam prior to the back-to-school start date. This will cover milestone checkups, form completions, and school requirements. Your pediatrician […]

Teen girl privately discussing symptoms with a female doctor

Adolescent Well Visits: A Safe Place for Teens to Be Heard

Adolescents are at a point in their lives where everything is (or simply feels like) it’s changing all around them. They’re gaining new skills as they learn and grow; they’re taking on new responsibilities as they gain more independence; and they’re navigating new social challenges — within their families, at school, and among friends as their peer group members also mature and grow. Meanwhile, their bodies are undergoing rapid physical, mental, and emotional development. When you put it all together, this can often lead to that feeling of uncertainty that most of us experienced growing up. This adolescent uncertainty leads to three core questions that almost every teenager goes to bed wondering: These questions are fundamental to an adolescent’s development and health, which is why there are differences in pediatric and adolescent medicine. Pediatrician checkups begin to change to include more questions about mental, emotional, and social well-being. Our goal […]

Period Poverty and Top Myths about Periods

Period Poverty & Top Myths about Periods

For some individuals, their period is nothing more than a slight inconvenience. However, this is not the reality for everyone. A study by Thinx and the nonprofit Period found that 1 in 5 teens have struggled to afford period products, and more than 4 in 5 teens have missed class or know someone who has had to miss class because they did not have any period products. What is Period Poverty? Period poverty refers to a lack of access to period products, as well as a lack of education surrounding periods. People associate period poverty with poor countries, but even in the United States millions of people suffer due to period poverty. In the U.S., period products aren’t covered by national food stamp programs, and many states still tax them. The COVID-19 pandemic has exacerbated this issue—rates of poverty skyrocketed, making it a struggle to put food on the table, […]

Should You Talk to Teens About weight Gain?

Should You Talk to Teens About Weight Gain?

America, we have a problem. One in five American children and adolescents are obese. Obesity is highest among adolescents 12-19 years-old compared to younger children. How do you know if your teenager is obese? Your teen’s Primary Care Provider (PCP) measures Body Mass Index (BMI). BMI is weight in kilograms divided by the square of the height in meters – yay for BMI calculators! Teenagers’ BMIs are expressed as percentiles: Related reading: How to Know if Your Teen Is at a Healthy Weight Why do parents need to worry? Because facts are facts: obese children are more likely to become obese adults, and obesity increases the risk of problems including diabetes, heart disease, and cancer. Also, we live in a society where weight bias and discrimination, or “ fat shaming,” is rampant.  Fat shaming triggers physical and emotional and physiological changes and is linked to depression, anxiety, low self-esteem, eating […]

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