Updated October 2026
TL;DR
This guide lists 45 medical research topics for high school students across seven areas: genetics, cardiology and physiology, neuroscience, microbiology and immunology, oncology, public health, and biomedical engineering and pharmacology. Each topic has a summary, a research question, and the tools or data you’ll need. Most use surveys, free US health databases, or devices you already own. Two tables help you match a topic to your interests, time, and resources. If you want to turn one of these ideas into a college-level research paper with one-on-one guidance from a PhD mentor, you can apply to the Horizon Academic Research Program.
If you’re interested in medicine, research, or public health, a small research project is a great way to build real skills and see how science connects to health issues around you. You might study how sleep affects focus, how diet relates to energy, or how new technology is changing the way doctors diagnose patients. Many of these topics don’t need advanced lab access. You can investigate them with surveys, free public data, or simple experiments at school or at home. Along the way, you’ll learn how scientists frame health questions, collect data, and interpret results. If you also enjoy biology beyond medicine, see our list of biology research topics for high school students.
Why is medicine a good field for a high school research project?
Health questions show up everywhere in your life: in your sleep, your lunch tray, your sports practice, and your phone. You can study them with very different methods, from a stopwatch and a survey to a federal database or a few lines of Python. That range lets you choose a project that fits your skills and the tools you can access.
How do you turn a health interest into one research question?
“Sleep” is a subject. “Do students who sleep under seven hours score lower on a reaction-time test?” is a question you can answer. To get there, pick one group, one variable to measure, and one comparison. If you can name exactly what you’ll count, time, or measure, the question is ready. For more examples of well-shaped questions, browse our list of psychology research topics for high school students.
What should you check before you start?
- Consent: For any project involving people, get permission and keep responses anonymous. Get a parent or guardian’s consent for anyone under 18.
- Fair approval: If you plan to enter an ISEF-affiliated science fair, human participant projects need Institutional Review Board (IRB) approval before you collect data.
- No dosing others: Never give anyone food, drinks, supplements, or medicine as part of an experiment. Track only yourself, or use surveys and published data.
- Lab safety: Culture bacteria only in a school lab with a teacher, and keep the plates sealed.
Which medical field fits your interests?
| If you like | Start with | Main methods | Easy first topic |
| DNA and heredity | Genetics and Molecular Biology | Public databases, simple lab work | Extracting DNA from fruit |
| Sports and exercise | Cardiology and Physiology | Heart rate and breathing measurements | Heart rate recovery after exercise |
| The brain, sleep, and behavior | Neuroscience and Psychology | Surveys, reaction-time tests | Music tempo and reaction time |
| Germs and vaccines | Microbiology and Immunology | Supervised lab work, CDC data | Flu vaccination rates by state |
| Cancer | Oncology | Public data, surveys | Mapping cancer rates by state |
| Community health | Public Health and Epidemiology | Maps, federal datasets, surveys | Food access near your school |
| Technology and medicines | Biomedical Engineering and Pharmacology | Device testing, coding, FDA data | Phone vs. watch step counts |
Genetics and Molecular Biology
These fields study how genes and molecules shape how living things work. By looking at DNA, heredity, and genetic conditions, you can see how traits and health risks are passed on.
1. Genetic Variants Linked to Lactose Intolerance
Genetics strongly influences whether adults can digest lactose, the sugar in milk. You’ll compare how common a well-studied variant near the LCT gene is across populations, which makes this a strong fit if you like population genetics and real data.
Research question: How does the frequency of the lactase persistence variant rs4988235 differ across world populations?
What you’ll need: Allele frequency data from Ensembl, a spreadsheet, and published papers on lactase persistence.
2. Genetic Literacy and Attitudes Toward DNA Testing Among Teens
At-home DNA tests are popular, but many people don’t understand what the results mean or how their data is used. This survey project suits you if you’re interested in genetics and bioethics.
Research question: How accurately do high school students understand genetic inheritance and the privacy risks of consumer DNA tests?
What you’ll need: An anonymous Google Forms survey, a short answer key based on published sources, and basic descriptive statistics.
3. Tracing Family Health Patterns to Understand Genetic Risk
Conditions like type 2 diabetes, heart disease, and allergies often run in families. Building a pedigree chart shows how genes and lifestyle interact, and it’s a good fit if you like detective-style data work.
Research question: Which chronic conditions appear most often across three generations of your family, and do they follow an inherited pattern?
What you’ll need: Anonymous health information from relatives who agree to share, pedigree chart software or paper charts, and a genetics reference text.
4. Extracting DNA From Fruit to Compare Yield
Using dish soap, salt, and cold rubbing alcohol, you can pull visible DNA strands from bananas, strawberries, and kiwis. This is a good first lab project if you like hands-on work.
Research question: How does DNA yield differ between fruits, and does a fruit’s number of chromosome sets relate to the amount extracted?
What you’ll need: Fruit, dish soap, salt, chilled rubbing alcohol, a kitchen scale, and photos for comparison.
5. The Genetics of Bitter Taste Perception
Some people find certain bitter compounds intense, while others barely taste them. Much of this variation is linked to the TAS2R38 gene, so this topic suits you if you like connecting genes to everyday traits.
Research question: What percentage of students in your sample can taste PTC, and how does that compare with published rates?
What you’ll need: PTC taste strips from a science supplier, consenting participants, and published prevalence studies.
6. Classifying Disease Variants in the CFTR Gene
ClinVar is a free NIH database that records genetic variants and their links to disease. CFTR is the gene involved in cystic fibrosis, and this topic is a good fit if you like databases and medical genetics.
Research question: What share of reported CFTR variants are classified as pathogenic, and what share are listed as of uncertain significance?
What you’ll need: ClinVar, a spreadsheet, and background reading on how variants are classified.
7. Pharmacogenomics and How Genes Affect Drug Response
Some people process certain medicines differently because of their genes. For example, variants in CYP2C19 affect how well the body activates the heart drug clopidogrel. This suits you if you’re drawn to genetics and pharmacology.
Research question: How do CYP2C19 variant frequencies differ across populations, and what does that mean for clopidogrel effectiveness?
What you’ll need: PharmGKB, Ensembl allele frequency data, and published clinical guidelines.
Cardiology and Physiology
These fields explore how the heart, lungs, and other body systems respond to daily life. If you’d like to practice skills like taking vital signs in person, our list of medical summer programs for high school students has hands-on options.
8. Screen Time and Heart Rate Variability
Heart rate variability (HRV) reflects how your nervous system responds to stress. You’ll track your own HRV around different screen activities, which makes this a good fit if you like wearable tech and behavioral health.
Research question: Does HRV change after gaming, scrolling social media, or studying on a screen?
What you’ll need: A smartwatch or fitness band that records HRV, a two-week activity log, and a spreadsheet.
9. The Effect of Posture on Lung Capacity
Slouching may limit how fully your lungs expand. This physiology project suits you if you like clear measurements and graphs.
Research question: How does forced vital capacity differ when sitting upright, standing, and slouching?
What you’ll need: A handheld spirometer from your school, consenting participants, and repeated trials for each position.
10. Blood Pressure in Active and Sedentary Teens
Physical activity supports heart health, even in adolescence. This topic is a good fit if you’re interested in sports medicine or cardiology.
Research question: Do teens who exercise at least five days a week have lower resting blood pressure than less active teens?
What you’ll need: A validated home blood pressure monitor, an activity survey, consent forms, and a t-test.
11. Caffeine and Resting Heart Rate in a Single-Subject Study
Caffeine is in coffee, tea, soda, and energy drinks, and people react to it differently. Because you’ll only track yourself, this is a safe way to study a stimulant, and it suits you if you like careful self-experiments.
Research question: Does your resting heart rate differ on days you have your usual caffeinated drink compared with days you skip it?
What you’ll need: A heart rate monitor, a three-week daily log, and a fixed measurement schedule.
12. Heart Rate Recovery After Exercise
How quickly heart rate drops after exercise is a common marker of cardiovascular fitness. This is a good fit if you play a sport or enjoy fitness data.
Research question: Does one-minute heart rate recovery improve over a season of regular training?
What you’ll need: A heart rate monitor or manual pulse counts, a training log, and data from several weeks.
13. Hydration Habits Among Student Athletes
Many US high school teams practice in summer heat, and dehydration can affect performance and safety. This topic suits you if you’re interested in sports medicine.
Research question: How closely do student athletes’ hydration habits match the guidance their athletic programs provide?
What you’ll need: An anonymous survey, your school’s or state association’s hydration guidance, and a comparison chart.
14. Blood Pressure Patterns by Age in National Data
The CDC’s National Health and Nutrition Examination Survey (NHANES) includes measured blood pressure for thousands of Americans. This suits you if you want to work with a large national dataset.
Research question: At what age does average systolic blood pressure begin to rise noticeably in NHANES data?
What you’ll need: NHANES data files, a spreadsheet or R, and basic regression.
Neuroscience and Psychology
These fields look at how the brain and mind work, from attention and memory to sleep and mood. Many of these topics overlap with mental health, so you’ll find more ideas in our list of mental health research topics for high school students.
15. Sleep Duration and Attention in Teens
Many teens don’t get the sleep they need, and attention often suffers. Because you’ll compare students’ natural sleep habits, nobody has to lose sleep for your study. This suits you if you like cognitive science.
Research question: Do students who usually sleep under seven hours have slower reaction times than those who sleep eight or more?
What you’ll need: A sleep survey, a free online reaction-time test, and a t-test.
16. Social Media Use and Teen Well-Being
Social media affects mood in different ways for different people. This is a good fit if you’re interested in psychology and digital behavior.
Research question: Is daily time on social media associated with self-reported stress among high school students?
What you’ll need: An anonymous survey with a validated well-being scale, a school counselor’s contact information on the form, and correlation analysis.
17. Music Tempo and Reaction Time
Music can change arousal levels, which may affect how fast you respond. This experiment suits you if you like quick, repeatable tests.
Research question: Do participants react faster after listening to fast-tempo music than after slow-tempo music?
What you’ll need: A reaction-time app, two playlists matched for volume, and repeated trials per person.
18. Headphone Volume and Hearing Risk
Long hours of loud listening can damage hearing over time. This topic suits you if you’re interested in audiology or public health.
Research question: What share of students regularly listen at volumes above safe-listening guidelines?
What you’ll need: A listening-habits survey, a decibel meter app such as NIOSH’s Sound Level Meter, and published safe-listening guidance.
19. Concussion Knowledge Among High School Athletes
Concussions are common in football, soccer, and cheer, and early recognition matters. This is a good fit if you’re interested in sports medicine or neurology.
Research question: How many common concussion warning signs can high school athletes correctly identify?
What you’ll need: A survey based on the CDC’s HEADS UP materials, consenting athletes, and a scoring sheet.
20. School Start Times and Teen Sleep
The American Academy of Pediatrics recommends that middle and high schools start no earlier than 8:30 a.m., and California now requires this for most high schools. This suits you if you like linking policy to health outcomes.
Research question: Do students at schools with later start times report more sleep on school nights?
What you’ll need: A sleep survey across two schools or class schedules, published research on start times, and a comparison of means.
Microbiology and Immunology
These fields study germs and how the immune system defends the body. Lab topics here should be done at school with a teacher. If you’d like to work in a professional lab someday, see our list of summer medical research programs for high school students.
21. Bacterial Growth on Everyday Surfaces
Phones, desks, and door handles carry different amounts of bacteria. This is a good first microbiology lab if you like visible results.
Research question: Which commonly touched surface at school produces the most bacterial colonies?
What you’ll need: Sterile swabs, agar plates, an incubator or warm space in your school lab, and teacher supervision.
22. Comparing the Effectiveness of Sanitizers
Alcohol-based sprays, gels, and “natural” products may not work equally well. This suits you if you like controlled experiments.
Research question: Which type of sanitizer produces the largest zone of inhibition on agar plates?
What you’ll need: Several sanitizers, agar plates, filter paper disks, a ruler, and teacher supervision.
23. Antibiotic Resistance and Everyday Habits
Overusing or misusing antibiotics helps resistant bacteria spread. This survey project suits you if you’re interested in public health and microbiology.
Research question: How often do families request antibiotics for colds or stop a prescription early?
What you’ll need: An anonymous survey, CDC guidance on appropriate antibiotic use, and a summary chart.
24. Bacteria in Reusable Water Bottles
Many students refill the same bottle for days without washing it. This lab is a good fit if you want a relatable, data-driven experiment.
Research question: How does bacterial growth inside a reusable bottle change over five days without washing?
What you’ll need: Swabs, agar plates, two or more bottles, and teacher supervision.
25. Flu Vaccination Rates Across the US
Flu vaccination rates vary widely by state and age group, and the CDC’s FluVaxView shares the data for free. This suits you if you like maps and public data.
Research question: Which regions of the US have the lowest flu vaccination rates for children and teens?
What you’ll need: FluVaxView data, a spreadsheet, and a free mapping tool.
26. Kindergarten Vaccine Exemptions and Measles Risk
The CDC’s SchoolVaxView reports kindergarten vaccination coverage and exemption rates by state. This topic is a good fit if you’re interested in immunology and policy.
Research question: How have kindergarten vaccine exemption rates changed by state in recent years, and which states fall below measles herd immunity levels?
What you’ll need: SchoolVaxView data, published herd immunity thresholds, and a trend chart.
Oncology
Oncology focuses on how cancer develops and how it can be prevented and detected early. These topics use surveys, public data, and safe lab models.
27. Daily Habits and Cancer Prevention
Diet, exercise, sleep, and avoiding tobacco all affect long-term cancer risk. This suits you if you like connecting research to everyday choices.
Research question: Which evidence-based cancer prevention habits do teens follow most and least often?
What you’ll need: A habits survey based on American Cancer Society guidelines and descriptive statistics.
28. Diet and Exposure to Cancer-Linked Foods
The World Health Organization classifies processed meat as a cause of cancer. This topic is a good fit if you’re interested in nutrition and oncology.
Research question: How often do high school students eat processed meats compared with fruits and vegetables?
What you’ll need: A food frequency questionnaire, published dietary guidelines, and a comparison chart.
29. UV Exposure and Cell Survival
UV light damages DNA in living cells, which is a key step toward skin cancer. You can model this safely using yeast, and it suits you if you like lab work with clear variables.
Research question: How does UV exposure time affect yeast survival, and how much does sunscreen reduce the damage?
What you’ll need: Yeast plates, a UV lamp, sunscreen spread on plastic wrap, eye protection, and teacher supervision.
30. Teen Awareness of Cancer Screenings
Screenings catch some cancers early, but many people aren’t sure how or when they’re done. This is a good fit if you’re interested in health education.
Research question: What are the most common misconceptions teens hold about cancer screenings and the HPV vaccine?
What you’ll need: An anonymous survey, CDC screening guidelines, and coded responses.
31. Mapping Cancer Rates by State
The CDC’s U.S. Cancer Statistics data tool lets you compare cancer rates across states for free. This suits you if you like spatial data.
Research question: Do states with higher adult smoking rates also have higher lung cancer incidence?
What you’ll need: U.S. Cancer Statistics data, CDC smoking prevalence data, and a correlation analysis.
Public Health and Epidemiology
These fields look at health patterns across whole communities. Many of these projects run entirely on a laptop, and if you’d like structured guidance from home, our list of online medical summer programs for high school students is worth a look.
32. Air Quality and Respiratory Symptoms
Air pollution affects health differently depending on where people live. This topic suits you if you’re interested in environmental health.
Research question: Do students report more coughing or shortness of breath on days when local AQI readings are higher?
What you’ll need: Daily data from AirNow, a symptom diary or survey, and correlation analysis.
33. Standing vs. Sitting and Concentration
Many schools now offer standing desks. This is a good fit if you’re interested in ergonomics and learning.
Research question: Do students complete a timed attention task more accurately while standing than while sitting?
What you’ll need: A standardized attention task, consenting volunteers, and a paired t-test.
34. Evening Screen Use and Sleep Quality
Late-night screen time may delay sleep and reduce rest. This single-subject study suits you if you like tracking your own data over time.
Research question: Is evening screen time associated with lower sleep quality scores the next morning?
What you’ll need: A two-week sleep diary, your phone’s screen time report, and a sleep quality rating scale.
35. Teen Knowledge of Over-the-Counter Medicines
Many teens take pain relievers or allergy medicine without checking doses or warnings. This topic is a good fit if you’re interested in pharmacology and health education.
Research question: How accurately can high school students identify safe doses and key warnings for common over-the-counter medicines?
What you’ll need: An anonymous survey, FDA Drug Facts labels for reference, and a scoring rubric.
36. Trends in Teen Vaping
The CDC and FDA run the National Youth Tobacco Survey, which tracks e-cigarette use among middle and high school students. This suits you if you like trend analysis.
Research question: How have teen vaping rates and preferred product types changed over the past several survey years?
What you’ll need: Published National Youth Tobacco Survey results, a spreadsheet, and trend graphs.
37. Food Access Near Your School
Some US neighborhoods have few grocery stores with fresh food. The USDA’s Food Access Research Atlas maps these areas, and this topic suits you if you like geography and equity.
Research question: How does food access around your school compare with nearby neighborhoods?
What you’ll need: The Food Access Research Atlas, census tract data, and a comparison map.
38. School Lunch and USDA Nutrition Standards
US school meals follow USDA nutrition standards. This is a good fit if you’re interested in nutrition policy.
Research question: How closely does one month of your school’s lunch menu match USDA standards for fruits, vegetables, and whole grains?
What you’ll need: Your cafeteria’s published menus, USDA school meal standards, and a scoring sheet.
39. Heat Safety Policies in High School Sports
Heat illness is a serious risk during summer practices, and state athletic associations set different rules. This topic suits you if you’re interested in sports medicine and policy.
Research question: How do heat safety policies differ across state high school athletic associations?
What you’ll need: Published state association heat policies, a comparison table, and research on heat illness in athletes.
Biomedical Engineering and Pharmacology
These fields combine medicine, technology, and design. You can test health devices, build simple models, or study how medicines reach and are explained to patients.
40. Natural vs. Synthetic Pain Relief: Belief and Evidence
Some people trust herbal remedies, while others prefer standard painkillers. This literature and survey project is a good fit if you like comparing public opinion with research.
Research question: How well do people’s beliefs about natural pain remedies match findings from published clinical studies?
What you’ll need: An opinion survey, five or six peer-reviewed study summaries, and a comparison table.
41. Accuracy of Wearable Heart Rate Monitors
Smartwatches and fitness bands promise accurate heart data. This suits you if you like testing technology.
Research question: How closely do two wearable devices agree with a manual pulse count at rest and after exercise?
What you’ll need: Two wearable devices, a stopwatch, and repeated measurements.
42. How AI Models Help Diagnose Health Conditions
AI is increasingly used to spot disease in medical data. This is a good fit if you know some Python or want to learn.
Research question: How accurately does a simple machine learning model predict a diagnosis in a public, de-identified health dataset, and where does it fail?
What you’ll need: Python with scikit-learn, a public health dataset, and a confusion matrix to evaluate errors.
43. Phone vs. Watch Step Counts
Phones and watches both count steps, but they don’t always agree. This quick project suits you if you like simple, clean experiments.
Research question: Which device more accurately counts a known number of steps while walking and running?
What you’ll need: A phone, a smartwatch, and repeated 500-step trials.
44. Readability of Over-the-Counter Drug Labels
Every over-the-counter medicine in the US carries an FDA Drug Facts label, but some may be harder to read than others. This is a good fit if you like language and health communication.
Research question: How do readability scores differ across Drug Facts labels, and do harder labels lead to more comprehension mistakes?
What you’ll need: Several labels, a free Flesch-Kincaid readability checker, and a short comprehension quiz for volunteers.
45. Patterns in US Drug Shortages
Drug shortages affect hospitals and patients across the country, and the FDA publishes a public shortage database. This topic suits you if you’re interested in pharmacology and health systems.
Research question: Which types of medicines appear most often on the FDA’s shortage list, and what reasons are most commonly given?
What you’ll need: The FDA Drug Shortages Database, a spreadsheet, and categories for drug type and cause.
Which topic fits your time and resources?
| Time you have | What you’ll use | Topics to try |
| 1 to 2 weeks | A phone, smartwatch, or stopwatch | Music tempo and reaction time, heart rate recovery, phone vs. watch step counts |
| 2 to 4 weeks | Free US health data and a spreadsheet | Flu vaccination rates, cancer rates by state, teen vaping trends, food access |
| 3 to 5 weeks | A survey of classmates, with consent | Genetic literacy, concussion knowledge, OTC medicine knowledge, headphone volume |
| 4 to 6 weeks | A school lab with a teacher | Surface bacteria, sanitizers, water bottles, UV and yeast survival |
| 6 weeks or more | Public databases or coding | Lactose intolerance variants, CFTR variants, pharmacogenomics, AI diagnosis |
These topics are a strong place to start on your own. If you want to take one further, the Horizon Academic Research Program is a selective online research program for high school students.
What students often ask about medical research projects
No. Many strong projects use surveys, federal health datasets, or devices you already own. Bacteria-based topics work well in a school lab with a teacher.
Yes, with consent. Keep responses anonymous and get a parent or guardian’s permission for participants under 18. If you’re entering a science fair, check whether your project needs IRB approval before you begin.
It can, if your question is focused and your methods are clear. Several journals accept work from high school students, and our guide on how to publish research in high school walks you through each step.
Yes. Data topics like vaccination rates, cancer maps, and genetic databases only need a laptop. If you’d like expert guidance from home, the Horizon Academic Research Program is fully online and pairs you with a PhD scholar or professor to write a 20-page research paper.
Image source: Horizon Academic Research Program