I always tell parents that, for many reasons, swimming should be the first sport a child learns.

Swimming is a fun, relaxing activity that fuels brain health and builds strong bodies. It’s great for growing children, since learning to move in the water improves coordination and flexibility. With indoor pools, swim clubs and water fun parks in many communities, families often enjoy swimming year-round.

But a more important reason I urge parents to enroll their kids in swim lessons — well before other sports like T-ball, basketball and soccer — is that beyond the fun and fitness it provides, swimming is an essential life skill that can help protect your child from drowning.

Drowning is the No. 1 cause of death among children ages 1 to 4. But research shows that teaching them to swim early in life is a key layer of prevention that can help avert tragedies.

Drowning can happen in seconds, and it’s often silent. My family knows firsthand how quickly a child can go under, whether it is swimming time or not. My toddler son once tumbled into our pool and was pulled out in time.

So the goal here is safety, not to shape every child into a future Olympic swimmer. What kids benefit from is an early start in building the five basic water skills that prevent drowning and other serious water-related injuries.

The American Red Cross has tips on safety, noting that people of all ages should be able to:

Step or jump into water that goes above their head;

Come back to the surface and float or tread water;

Turn around in a full circle and find a way out of the water;

Swim at least 25 yards to the exit point; and

Climb out without help, even if there is no ladder.

According to the American Academy of Pediatrics, for many children, swim lessons can start as early as 12 months. Children develop at different rates, so there’s no hard-and-fast rule about when they should learn to swim. Emotional maturity, physical development and any special limitations will all come into play. Talk with your pediatrician about water safety and ask for advice on when it’s best to begin.

Don’t feel pressured to start lessons before your child’s first birthday, since infants can’t raise their heads out of the water well enough to develop swim breathing techniques. Even so, a water play class will get your little one accustomed to being in the pool, so if it seems like a fun option, go for it! You can follow up with formal lessons later on.

By age 4, nearly all children are ready for classes that help them build confidence and water safety skills. They will learn to float, tread water and find an exit point. By age 5 or 6, most can master basic swim strokes like the front crawl.

Some parents worry that their child can’t learn to swim alongside other kids. For example, if your child has autism, you might feel reluctant to start swim lessons. These concerns are understandable, but keep in mind that children with autism spectrum disorder are much likelier to drown or suffer water-related injuries than their peers. Risks for children with Down syndrome and other developmental conditions can be high too — which makes water safety a must.

The good news is swimming can be very beneficial for special-needs kids. As they gain skill and confidence moving in the water, they may achieve better coordination, balance, muscle tone and stress relief. Many swim schools have sessions designed for special-needs children, taught by trained instructors. Ask your pediatrician and fellow parents for recommendations.

W. Steen James, MD, FAAP, is a member of the American Academy of Pediatrics. A practicing pediatrician for nearly 40 years, she is the founder of Pediatrics Village, P.C. in Peachtree City, Georgia.