Students learn when they are well. When they aren't well, well…

Learning is mental work. It requires presence and concentration, and a lot of things can get in the way. This lesson summarizes many of the ways that health plays a role in school, and vice versa.

Why do schools provide free lunch?

Children cannot concentrate when they are hungry. Food aid began at scale in cities and states during the Great Depression era — it is one of the oldest and most basic interventions in public school systems. Over the years, the National School Lunch Program (authorized in 1946) has been expanded and modified multiple times. Free school meals in California used to be provided only to students who could document that their family was low-income, a cumbersome process that many found humiliating. Beginning in 2022-23, all California public schools, charter schools, and county offices of education were required to provide universal meals. Every student is eligible for free breakfast and lunch daily, regardless of household income.

Many Americans do not eat well. Unhealthy diet, combined with a lack of exercise, contributes to obesity, which has long-term health implications. Rates of obesity in all states have risen over the long term, though less so in California. Boys are more likely to have obesity than girls.

Child nutrition in California is overseen by the State Board of Education through the Child Nutrition Advisory Council (CNAC). Non-government organizations that work to improve child nutrition include Nourish California. During the pandemic, school food services scrambled to adapt. Although the work of serving food is thoroughly local, the money for it has long been mostly driven by federal funding. Historically, school meals were often unappealing. California First Partner, Jennifer Siebel Newsom, has been a forceful advocate for investing state resources in healthy and appetizing school meals, especially through farm-to-school and farm-to-fork programs.

Do schools have nurses?

Budget cuts have had a severe impact on the ability of schools to hire nurses. School nurses — if you have them — take care of a lot more than cuts and scrapes. They administer medications and vaccines, provide health counseling, support school wellness programs, and make health referrals.

The Robert Wood Johnson Foundation warns that the lack of nurses weakens school health services and puts children at risk. In every school, some children suffer from life-threatening conditions and diseases such as diabetes, seizures, asthma, bleeding disorders, mental health problems, and severe allergies. Medical advances have rendered many of these conditions treatable or manageable, but they do not manage or treat themselves.

As of 2024, there was no known reliable data about access to school nurses in California. The best available data were from 2019, when California badly lagged behind the nation in school nurses according to KidsData.org, with 2,410 children per school nurse. The National Association of School Nurses recommends a ratio of 750:1 for well children and 225:1 for student populations with special needs.

Children with acute health care needs may require even more help to remain in school. School Health Services for Children With Special Health Care Needs in California, a report from PACE, points out the challenges facing our children and our schools, such as this eye-opener:

School-based health care

Most children receive health care through whatever insurance their family can afford, which for many families is little or nothing. Health services and school services operate separately, but it is not a church-and-state issue. Schools already play a major role in student health through food aid and vaccination. According to a major study led by Columbia University economics professor Randall Reback, schools could play a significant role in basic health screening, at an incremental annual cost of about $100 per student [in 2018 dollars].

Schools would seem an obvious place to offer screening and basic care, but fewer than 20% of elementary schools in California offer health services for children.

Medicaid funding to support school-based investments is available, Reback notes, but school districts and county health offices rarely coordinate their efforts to take advantage of it. As of this writing in December 2024, the freshest data available (from the California School Based Health Alliance in 2021) identified fewer than 300 school-based health centers in the whole state.

There is no fundamental barrier blocking school districts from including student health in their mission. School districts have the authority to spend on school-based health programs if they want to.

What is the role of schools in vaccinations?

Vaccinations are a cornerstone of public health in California, which requires vaccinations for all students with very few exceptions. Prior to 2016, the law had allowed families to cite personal beliefs to opt out of vaccinations, a policy that led to outbreaks. The COVID-19 pandemic increased public awareness of vaccination policy, further amplified in late 2024 by the nomination of Robert F. Kennedy Jr. to lead the nation's health system. The Centers for Disease Control tracks disease outbreaks.

Certain exemptions are still allowed for a home-based private school or an independent study program with no classroom-based instruction. The California Department of Health provides a website, aptly titled Shots for School, that enables you to check the historical immunization rate at your school.

California's vaccination requirements protect students from school-based outbreaks of the following deadly and disfiguring diseases: Diphtheria, Pertussis, Tetanus, Polio, Measles, Mumps, Rubella, Hepatitis B, and Chickenpox. For additional information about vaccinations in California schools, including a map that estimates your community's vulnerability to outbreaks, see this blog post.

Physical activity and "P.E."

California requires physical education (P.E.) for virtually every child virtually every day, but most children do not get the daily physical activity they need.

According to the Centers for Disease Control and Prevention, physical inactivity is consistently linked to poor grades and lowered educational attainment. The Centers for Disease Control provides school health guidelines to promote healthy eating and physical activity.

P.E. classes aren't just for running around. For more about the role of P.E. in education, see Ed100 Lesson 6.9.

Sex education

Most people agree that schools need to teach sex ed. But they don't necessarily agree about what sex education should include, what the goals of sex ed programs should be, and whether specific programs can achieve those goals.

In 2015, the California legislature updated its policies for sex education and HIV/STD prevention. In doing so, it significantly clarified what schools are obligated to teach. The California Healthy Youth Act requires public schools to provide all students in grades 7-12 with age-appropriate sexual health education that is "comprehensive and medically accurate," meaning that it includes content about human development, sexuality, pregnancy, contraception, and sexually transmitted infections, including HIV. This definition leaves plenty of wiggle room for big variations among schools because the minimum legally required "dosage" of sex ed is just one class session in middle school (grades 7-9) and another in high school (grades 10-12).

For more about sex education in California, have a look at the Ed100 blog post on the subject. The post explores how California schools are dealing with puberty education, teen pregnancy, sexual consent, and other topics.

Lead toxicity and other environmental risks

Health issues go far beyond a school nurse, healthy meals, and physical activity. They include indoor air quality, asthma management, and sun safety measures at school.

Lead is a sneaky toxin. If you see peeling paint, suspect the worst. You shouldn't assume that water at your school is safe, either. California regulations generally require that schools have at least one drinking fountain for every 150 students. In 2013, EdSource exposed data about lead in school drinking fountains across the state. By 2019, hundreds of schools had tested their taps, but gaps remained. EdSource updated its map of lead in school drinking fountains again in 2024.

Sleep!

Compelling research confirms the educational value of sleep. Children need 8.5 to 9.5 hours of it, and they learn poorly when they are fatigued.

For decades, school calendars and schedules were set up in a way that short-changed everyone's sleep. Schedules are generally under the local control of school districts, but in practice, changing them is extraordinarily difficult.

In 2019, partly in response to persistent advocacy by the California State PTA, California enacted laws that forced the issue by specifying how early schools may start. Beginning with the 2022-23 school year, middle schools were required to begin no earlier than 8:00 am, and high schools no earlier than 8:30 am. This was a significant policy change, requiring perhaps 90% of California schools serving those grade levels to revamp their schedule. The transition period ended up coinciding with the pandemic — it was the least of the changes that schools had to deal with!

As an unanticipated benefit of the change, parents got more sleep, too.

Mental health

Aside from parents and family, teachers and other faculty are in the best position to notice mental health issues in children and take supportive action, if they know how.

Anxiety and depression are common maladies for adolescents, especially girls.

Not all childhoods are happy. Some children come to school with symptoms of trauma, and few schools prepare their faculty to offer the help children need. Untreated mental health problems can completely derail learning… or worse. Suicide is the second leading cause of death for adolescents, a topic we explore in greater depth in the Ed100 blog.

Cannabis, vaping and drugs

Many life habits are formed in youth. Unfortunately, young people don't always make healthy choices.

The good news is that long-term trends in this area have been mostly positive for the last several decades. Since 1975, the National Institute on Drug Abuse (NIDA) at the National Institutes of Health has measured drug and alcohol use and related attitudes among adolescent students nationwide through a huge annual study called Monitoring the Future. Over time, teen usage rates of many very dangerous drugs have been trending downward. During the stay-at-home pandemic year of 2021, the rate dropped sharply.

The bad news is that some of these trends seem to be reversing. Teen smoking has largely been replaced with vaping, which is cheaper and stealthier than cigarettes, but every bit as addictive. The legalization of cannabis products in California for adults 21 and older changed public attitudes about the drug and its derivatives, and made access easier for teens and children. The NIH cautions that cannabis has real risks.

Next Steps

All school districts that participate in the National School Lunch Program are required to have a school wellness policy developed with community input. These policies (see example) set goals for nutrition as well as physical activity and other school-based activities. If you are trying to boost wellness in your school, reviewing this policy can be a place to start.

Updated December 2024