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Teen Health
Reviewed by Medicinsk Expert•Last updated: 2026-10-22•Population Groups

Teen Health

Adopting healthy habits during adolescence supports growth, independence, and long‑term disease prevention.

Overview

As a teenager, you go through many changes. Your body is on its way to becoming its adult size. You may notice that you can’t fit into your old shoes or that your jeans are now 3 inches too short. Along with these changes, you are probably becoming more independent and making more of your own choices. Some of the biggest choices you face are about your health.

Healthy habits, including eating a healthy diet and being physically active, can help you feel good, look good, and do your best in school, work, or sports. They might also prevent diseases such as:

  • diabetes
  • high blood pressure
  • heart disease
  • osteoporosis
  • stroke
  • some cancers

Frequently Asked Questions

Most teenagers need 8 to 10 hours of sleep per night to support their growth, mood, and cognitive function. To improve sleep, try to maintain a consistent sleep schedule, even on weekends. Create a relaxing bedtime routine, avoid caffeine and heavy meals close to bedtime, and limit screen time (phones, tablets, computers) for at least an hour before sleep, as the blue light can disrupt melatonin production. Make sure your bedroom is dark, quiet, and cool.
Teens can start by making small, consistent changes. For healthy eating, pack lunches with fruits, vegetables, and lean protein, keep healthy snacks like nuts or yogurt accessible, and choose water over sugary drinks. For physical activity, find activities you enjoy, whether it's joining a sports team, dancing, walking with friends, or doing short workout videos. Aim for at least 60 minutes of moderate to vigorous activity most days of the week. Breaking it into 10-15 minute segments throughout the day can also be effective.
Navigating peer pressure and body image can be challenging. Focus on making choices that make you feel good and energized, rather than trying to fit a certain ideal. Remember that health looks different on everyone. Surround yourself with friends who support your well-being and positive choices. If body image concerns are significantly impacting your self-esteem or leading to unhealthy behaviors, talk to a parent, counselor, or doctor for support and guidance.
Key signs can include persistent sadness, irritability, loss of interest in activities they once enjoyed, significant changes in sleep patterns or appetite, social withdrawal, sudden drops in academic performance, or expressing feelings of hopelessness. If these changes are severe, last for more than a couple of weeks, or interfere with daily life, it's important to talk to a trusted adult, school counselor, or healthcare provider. Early intervention can make a big difference.
Source: MedlinePlus, National Library of Medicine

MedlinePlus brings together authoritative health information from the National Library of Medicine (NLM), the National Institutes of Health (NIH), and other government agencies and health-related organizations.

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