15 Health Science Project Ideas for High School Students

If you are a high school student interested in health science, you may want to explore the subject beyond what a biology or chemistry class can offer by working on a research project. A health science project lets you explore questions that interest you, whether that is how the body fights disease, how lifestyle choices affect long-term health, or how public health systems respond to outbreaks. It also strengthens your college application by showing admissions committees that your interest in health and medicine extends beyond the classroom. 

Why should you do a project in high school?

Completing a project in high school prepares you for college-level work while strengthening your application. As an undergraduate, you will be expected to complete advanced assignments that require research, problem-solving, time management, and independent learning. Working on a project now helps you build these skills before college. It can also help you understand your academic interests, making it easier to choose a major, courses, internships, and extracurricular activities that match your goals.

With that, here are 15 health science project ideas for high school students worth exploring!

If you’re looking for online summer research programs, check out our blog here.

Key takeaways

• These 15 projects span public health, environmental science, neuroscience, psychology, microbiology, nutrition, and physiology, so students with a range of health science interests can find a project that matches their curiosity and available resources.

• Most projects are beginner-friendly and require minimal equipment, including air quality studies, sleep surveys, social media and mood trackers, and hydration tests, while more advanced projects, such as the hand sanitizer effectiveness study and water quality testing, involve lab materials and controlled experimental design.

• Several projects produce outputs that go beyond a simple report, including community health advocacy materials (mental health awareness, vaccination attitudes), a publishable literature review (gut microbiome and diet), and data-driven recommendations (sleep and academic performance), all of which can strengthen college applications.

• Each project includes an honest note on drawbacks, such as self-reporting bias, confounding variables, or ethical considerations, which prepares students to think critically about research design before they begin.

• The Lumiere Research Scholar Program offers a structured alternative for students who want to develop one of these ideas into a full independent research paper with one-on-one PhD mentorship.

1. Air Quality and Respiratory Health

Study the impact of local air quality on respiratory health! This project involves examining public pollution data, reviewing medical research, and surveying your community to find correlations. The first step for this project is to collect local and regional air quality data – the good news is that government environmental sites provide this data publicly. Next, distribute an anonymous survey asking participants to report respiratory issues like asthma or bronchitis. Calculate the correlation between local pollution levels and reported symptoms, then evaluate your findings!

Level of Knowledge Needed: Beginner

Skills Required: Basic data analysis, familiarity with air quality reporting factors.

Drawbacks: Since your analysis is correlation-based, you won't be able to prove a direct causal link. Also, seasonal allergies can skew your results!

Who this is a good fit for: Students passionate about environmental science and public health who want to work with data to understand community health

2. Antibiotic Resistance Awareness Study

Gauge public awareness around one of the WHO's major global health threats. This project involves researching common misconceptions about antibiotic resistance, designing a survey, and analyzing public knowledge. The first step for this project is to identify frequent misunderstandings, like the idea that the human body, rather than bacteria, becomes resistant. The good news is that you can easily distribute your survey digitally across different demographics! Analyze the responses to see which misconceptions are most prevalent across different ages or education levels, then report your findings!

Level of Knowledge Needed: Beginner

Skills Required: Basic familiarity with microbiology and antibiotic resistance; survey distribution strategies.

Drawbacks: Survey questions must be phrased incredibly carefully to avoid bias influencing the responses.

Who this is a good fit for: Students interested in public health policy, epidemiology, and science communication.

3. Screen Time and Eye Strain

Investigate the physical impacts of our daily phone and computer usage. This project involves surveying peers about their screen time habits and analyzing associations with symptoms like dry eyes or blurred vision. The first step is to have participants track their screen time using built-in phone/computer features and complete daily symptom logs. The good news for this project is that your peers already have the tracking tools right in their pockets! Calculate correlations between total screen time and eye strain symptoms using basic statistical analysis, then draw your conclusions!

Level of Knowledge Needed: Beginner

Skills Required: Basic statistical analysis, survey design.

Drawbacks: The study relies heavily on subjective self-reporting of symptoms, which may slightly skew your results.

Who this is a good fit for: Students interested in optometry, physiology, or the health impacts of modern technology.

4. The Effect of Music on Stress and Heart Rate

Explore how different genres of music influence our physiological stress responses! This project involves hooking participants up to a heart rate monitor and exposing them to varying musical stimuli. The first step is to establish a baseline resting heart rate for each participant in a neutral room. Then, have them listen to classical, pop, or heavy metal using noise-canceling headphones! The good news is that heart rate monitors are affordable and easily accessible. Measure the changes in their heart rate relative to their baseline, record their perceived mood, and analyze the physiological impact of sound!

Level of Knowledge Needed: Beginner

Skills Required: Experimental design, data collection, spreadsheet management, and regulating testing conditions.

Drawbacks: Individual music preferences vary wildly; a heavy metal song might relax one person but stress out another.

Who this is a good fit for: Students curious about neuroscience, psychology, and the mind-body connection.

5. Nutrition and Athletic Performance

Ready to hack athletic performance? This project connects the dots between what we eat and how we move. Instead of comparing different athletes to one another, you'll have participants act as their own baselines over several weeks. They'll meticulously track their daily nutrition (carbs, protein, hydration) and regularly complete a standardized physical test, like a timed sprint. You'll analyze the data to find out which dietary habits consistently result in peak physical performance.

Level of Knowledge Needed: Beginner

Skills Required: Basic knowledge of nutrition and long-term data tracking.

Drawbacks: Sleep quality, daily stress, and muscle soreness will also impact athletic performance, making it tough to isolate diet as the sole factor.

Who this is a good fit for: Student-athletes or those interested in sports medicine, kinesiology, and dietetics.

6. Hand Sanitizer Effectiveness Study

Test the real-world efficacy of common hand sanitizers on eliminating bacteria! This project involves culturing bacteria in petri dishes, applying different sanitizers, and measuring the "zone of inhibition." The first step is to obtain safe bacterial samples, like E. coli, and evenly plate them on agar. The good news is that biological supply sites sell safe, high school-friendly bacteria kits online! Add small disks saturated with different sanitizers to the dishes, incubate them, and measure the area where bacteria fail to grow to determine which brand actually works best!

Level of Knowledge Needed: Intermediate

Skills Required: Laboratory safety, petri dish culture techniques, and measuring techniques.

Drawbacks: Requires purchasing specialized lab materials and a sterile environment to prevent contamination.

Who this is a good fit for: Students who love hands-on biology lab work and are interested in microbiology or pharmacology.

7. The Effects of Exercise on Mood

Merge psychology and physiology to track how physical activity influences mood! This project involves monitoring the exercise habits and daily stress levels of a participant group over several weeks. The first step is to recruit a diverse group of individuals who exercise at high, moderate, and low frequencies. The good news for this project is that daily mood tracking apps make data collection incredibly easy for your participants! Analyze the gathered data to identify correlations between workout frequency, or even workout types like cardio vs. weights, and overall mental well-being!

Level of Knowledge Needed: Beginner

Skills Required: Survey design, longitudinal data tracking.

Drawbacks: Everyone's "baseline" mood is different, and external life events (like exams or college apps) can heavily impact the data.

Who this is a good fit for: Students interested in sports psychology, mental health advocacy, and behavioral science.

8. The Impact of Sleep on Academic Performance

Examine the critical relationship between healthy sleep habits and high school GPA! This project involves designing a comprehensive survey targeting sleep duration, sleep quality, and academic success. The first step is to draft questions regarding nighttime routines, screen usage before bed, and self-reported concentration abilities in class. The good news is that high schoolers are the perfect, easily accessible demographic for this exact study! Analyze the survey data to propose actionable ways for students to increase their sleep quality and boost their grades.

Level of Knowledge Needed: Beginner

Skills Required: Basic statistics, survey design.

Drawbacks: Students might inflate their GPA or downplay their screen time out of embarrassment; total anonymity is completely required!

Who this is a good fit for: Students interested in neuroscience, education, and adolescent development.

9. Water Quality Testing in Your Community

If you’re interested in environmental science, chemistry, and public health, this project provides a combination of these disciplines with the potential to improve the health of your community.  You’ll collect water samples from a variety of local sources (e.g., tap water, streams, rainfall, groundwater), then test each sample for indicators like pH, bacteria levels, or other contaminants. You can then compare these rates to federal guidelines, average rates in your region or state, and between one another to identify potential environmental risks or noteworthy variations between water sources near you. 

Level of Knowledge Needed: Intermediate

Skills Required: Chemistry experimental skills, lab safety, and safe water collection techniques.

Drawbacks: Requires more complex testing materials, and you may need permission to use your school's chemistry lab for the best results.

Who this is a good fit for: Students passionate about environmental chemistry, civil engineering, and public health advocacy.

10. Vaccination Attitudes Study

Analyze community perspectives on vaccines and the social factors driving them. This project involves distributing a demographic survey and analyzing trends in medical trust. The first step is to draft a completely neutral questionnaire asking about perceived risks, trusted information sources, and basic demographics. The good news is that you can easily reach a wide variety of regions and backgrounds using online forums and social media! Analyze the data to see if specific demographics share similar rationales, then brainstorm better public health messaging strategies!

Level of Knowledge Needed: Beginner

Skills Required: Basic knowledge of immunology, familiarity with vaccine discourse, and objective survey writing.

Drawbacks: This is a highly controversial topic; keeping your survey wording perfectly neutral is difficult but essential.

Who this is a good fit for: Students interested in sociology, public health administration, and medical ethics.

11. Caffeine Consumption and Reaction Time

Test whether caffeine actually provides a cognitive boost or just gives you the jitters! This project involves conducting reaction-time tests before and after participants consume a caffeinated beverage. The first step is to recruit regular caffeine users and have them complete a baseline movement-based test, like clicking a button when a screen turns green. The good news is that there are dozens of free reaction-time test websites you can use! Administer the caffeine, test them again at 15, 30, and 60-minute intervals, and graph the metabolic effects on their speed!

Level of Knowledge Needed: Intermediate

Skills Required: Controlled experimental design, conducting basic cognitive tests, and data graphing.

Drawbacks: You must navigate safety and ethical considerations regarding caffeine consumption, and always ask permission before running this at school!

Who this is a good fit for: Students interested in pharmacology, neurology, and human performance.

12. Mental Health Awareness in Teens

Study the awareness of mental health conditions, resources, and stigmas among your peers! This project involves constructing an ethical survey to gauge how well teens understand anxiety, depression, and local support systems. The first step is to research the available mental health resources in your community, so you have a baseline of what students should know. The good news for this project is that your findings can be directly used to pitch real educational programming to your school administration! Distribute the survey, analyze the awareness gaps, and advocate for better student support.

Level of Knowledge Needed: Beginner

Skills Required: Knowledge of psychology terminology, familiarity with local mental health resources.

Drawbacks: Due to privacy concerns, you must avoid asking students about their personal mental health diagnoses.

Who this is a good fit for: Students passionate about clinical psychology, social work, and peer advocacy.

13. The Gut Microbiome and Diet

Dive into how our diets fundamentally alter our gut bacteria and long-term health. This project is a comprehensive literature review focusing on recent peer-reviewed findings. The first step is to gather scholarly articles from respected biology and nutrition journals. The good news is that databases like PubMed and Google Scholar offer thousands of free, open-access papers on this exact topic! Home in on a specific angle, like the impact of ultra-processed foods on bacterial diversity, synthesize the research, and write a comprehensive review paper.

Level of Knowledge Needed: Intermediate

Skills Required: Strong reading comprehension in biology, academic research skills, and synthesizing complex text.

Drawbacks: Because this is a literature review, there is no hands-on experimental component.

Who this is a good fit for: Students interested in gastroenterology, research science, and medical writing.

14. Social Media Use and Sleep Quality

Study the modern intersection of screen time, blue light, and adolescent sleep disruption! This project involves surveying peers on their late-night scrolling habits and their subsequent sleep quality. The first step is to create a standardized self-reporting scale for sleep quality and emotional reactions to online content. The good news is that this topic is highly relevant, making it easy to find enthusiastic participants! Analyze the trends to see how specific online habits, like doomscrolling vs. watching relaxing videos, impact next-day mood and restfulness!

Level of Knowledge Needed: Beginner

Skills Required: Survey design, basic statistical analysis, and creating standardized reporting scales.

Drawbacks: Sleep is incredibly nuanced; academic stress or minor illnesses can easily skew a participant's sleep data regardless of their screen time.

Who this is a good fit for: Students curious about behavioral psychology, sleep medicine, and the impacts of digital media.

15. Hydration and Cognitive Function 

Measure the direct relationship between daily hydration levels and short-term memory! This project involves conducting cognitive recall tests on participants at different stages of hydration. The first step is to establish a safe baseline by testing participants early in the morning before they consume large amounts of liquids, using a memory task like recalling a string of numbers. The good news for this project is that the only "medication" you need to administer is standard drinking water! Provide the water, wait 15 minutes, re-test their memory, and evaluate the cognitive boost!

Level of Knowledge Needed: Beginner

Skills Required: Basic knowledge of physiology, controlled testing administration.

Drawbacks: Careful experimental design is required to ensure participants are ethically and safely managed without causing severe dehydration.

Who this is a good fit for: Students interested in cognitive science, physiology, and how basic daily habits affect the brain.

Frequently asked questions

What health science project ideas are good for high school students?

Strong starting points include studying the impact of air quality on respiratory health, examining sleep and academic performance, investigating screen time and eye strain, and analyzing community awareness of antibiotic resistance, all of which are accessible with basic survey tools and publicly available data.

Which health science projects require lab equipment?

The hand sanitizer effectiveness study requires petri dishes, agar, and bacterial samples, and the water quality testing project requires chemistry lab access, while most other projects on this list can be completed using surveys, public data, or simple cognitive tests.

Which projects are best for students interested in mental health?

The mental health awareness in teens project, social media use and sleep quality study, and effects of exercise on mood project all focus on psychological and behavioral dimensions of health, making them strong fits for students interested in clinical psychology, behavioral science, or social work.

Can any of these projects be entered in a science fair?

Yes, projects with a clear experimental design, such as hand sanitizer effectiveness, caffeine and reaction time, hydration and cognitive function, and music and heart rate, are particularly well-suited for science fairs because they involve testable hypotheses, controlled variables, and measurable results.

How can students take a health science project further?

The Lumiere Research Scholar Program pairs students one-on-one with a PhD mentor to develop an independent health science research paper, which is a strong next step for students who want to expand a project idea into formal academic work.

Which projects are best for students interested in public health?

Air quality and respiratory health, antibiotic resistance awareness, vaccination attitudes, and water quality testing all connect individual health science concepts to broader community and policy questions, making them strong fits for students interested in public health, epidemiology, or health policy.

One other option—the Lumiere Research Scholar Program

If you’re interested in pursuing independent research, consider applying to one of the Lumiere Research Scholar Programs, selective online high school programs for students founded with researchers at Harvard and Oxford. Last year, we had over 4,000 students apply for 500 spots in the program! You can find the application form here.

Also check out the Lumiere Research Inclusion Foundation, a non-profit research program for talented, low-income students. Last year, we had 150 students on full need-based financial aid!

Stephen is one of the founders of Lumiere and a Harvard College graduate. He founded Lumiere as a Ph.D. student at Harvard Business School. Lumiere is a selective research program in which students work one-on-one with a mentor to develop an independent research paper.