By the time your child is a teenager, you’ll probably feel confident in taking care of him or her at home and recognizing worrisome symptoms that warrant a doctor’s appointment. But new challenges will arise when your child reaches puberty: As your child’s body evolves into a young woman’s or man’s, emotional changes that can be hard on the whole family may also occur. Here are some stumbling blocks to watch out for:

Whose Body is This?

As your child goes through puberty, he or she may begin to feel uncomfortable in his or her own skin—with how your teen’s body is changing and how surging hormones can affect feelings. Since body image issues can crop up during the teen years in both girls and boys, it’s important to help your child find ways to feel proud of what the body can accomplish—on the track or basketball court, for example—and to take good care of it by fueling it with healthy foods, plenty of sleep, the right amount of exercise, and good hygiene. Helping your teen cultivate healthy habits and a positive body image may also help prevent eating disorders, another potential risk at this age.

In addition, stress and depression can take a toll on teens as they try to deal with all the changes they’re experiencing physically and socially along with the pressures of school, after-school activities, part-time jobs, and so on. In teens, depression doesn’t always manifest itself as sadness: Sleeping excessively, dropping out of normally enjoyable activities, being constantly cranky or argumentative, withdrawing from others, and engaging in risky behavior can also be signs of depression. If your teen experiences these changes for longer than two weeks, it’s wise to have him or her evaluated for depression.

Why Am I So Tired?

If you’ve noticed your teen has a tendency to stay up late at night and sleep through the alarm in the morning, it’s not due to laziness. It’s because your teen’s internal clock has shifted during puberty, causing him or her not to get sleepy until later at night. Most teenagers need about nine hours of sleep per night but it can be hard for them to get enough shut-eye, as they manage after-school activities or homework and they have to get up early in the morning for school. Getting insufficient sleep on a regular basis can lead to concentration problems, mood swings, and accidents, among other problems. That’s why it’s important to help your teen get enough sleep on a nightly basis by trying to reset the body’s clock. To do this, it helps to dim the lights during the evening (to promote sleepiness) and expose your teen to bright light in the morning (to promote alertness), to stick with a consistent bedtime and awakening time, to limit caffeine intake, and to discourage long afternoon naps.