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How would you choose an undergraduate field if your long-term goal was to make a meaningful contribution to research on human biology?

I'm trying to identify the field in which I could make the greatest long-term scientific contribution, rather than simply choosing the subject I currently find most interesting.

I'm drawn to research that helps us better understand human beings, especially questions at the intersection of biology, cognition, behaviour and ethics (i am really into philosophy and am good with languages and both creative and scientific writing!). I enjoy connecting ideas across disciplines, thinking about fundamental questions, and communicating complex concepts through writing. However, I'm still unsure whether I would be happiest in a predominantly wet-lab environment or in more computational, theoretical or integrative research.

I'm also uncertain how advances in AI will reshape biomedical research over the coming decades, and whether this should influence the choice of an undergraduate discipline.

If you were advising a student with these interests, what criteria would you use to choose a field? Are there particular traits or experiences that predict whether someone is better suited to neuroscience, genetics, or another area of biomedical research? What do you think will matter most for building a career with lasting scientific impact?

Additional information

At the moment, I'm considering undergraduate Neuroscience programmes in the UK. In Italy, since there isn't really a direct equivalent, I'm also looking at Molecular Genetics as a possible alternative foundation. I'm genuinely open-minded and would value an unbiased perspective on how these paths compare, especially for someone whose ultimate goal is a research career rather than clinical practice.

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Emily’s Answer

Hi! From what you’ve shared, I don’t think there’s a single “right” major that will determine whether you make a meaningful contribution to research. What’s more important is choosing a field that keeps you motivated enough to spend years learning, asking questions, and gaining research experience. Since you’re interested in biology, cognition, behavior, and ethics, neuroscience seems like a natural fit because it brings many of those areas together, while molecular genetics would give you a strong foundation in the biological mechanisms behind health and disease. I also wouldn’t choose a major based primarily on AI. AI will likely become an important tool across many areas of biomedical research, so having a solid understanding of biology and being open to learning computational skills later will probably be more valuable than trying to predict exactly where the field is headed. My biggest recommendation is to look for undergraduate programs that offer research opportunities early on, since hands-on experience is one of the best ways to discover what type of research environment you enjoy. No matter which path you choose, your curiosity, willingness to learn, and ability to communicate scientific ideas will be some of your greatest strengths.
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Supreeti’s Answer

Lasting scientific impact comes from intellectual curiosity, resilience, interdisciplinary thinking, and a commitment to lifelong learning rather than from choosing a single “best” field. Since you are interested in understanding human beings through biology, cognition, behaviour, ethics, philosophy, and communication, you are naturally suited to interdisciplinary research. The most influential scientists are rarely those who chase the hottest field; they are those who remain deeply curious; adapt to new technologies; and become experts at connecting ideas across disciplines. Advances in AI will undoubtedly transform biomedical research by accelerating data analysis, drug discovery, genomics, and neuroscience, but AI is more likely to amplify scientists than replace them. Combining deep biological knowledge with computational thinking, critical reasoning, and excellent communication will be very valuable in future.
Between neuroscience and molecular genetics here is what I understand Neuroscience is ideal if you are fascinated by consciousness, cognition, behaviour, and the brain, while molecular genetics provides a broader understanding of the biological mechanisms that underlie health and disease and is highly complementary to AI-driven research. Your undergraduate degree is only the beginning; many researchers transition between these fields during graduate study. Your focus should be more on research experiences you gain, the mentors you work with, your willingness to learn quantitative methods and programming, and your ability to ask meaningful scientific questions. Hope this helps. Good luck!
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Sandeep’s Answer

Hello Giulia,

I would choose the field that gives you the strongest foundation in biology while keeping your options open. Neuroscience is a great fit if you're interested in cognition and behavior, while molecular genetics provides a strong foundation for understanding disease, genomics, and modern biomedical research.

Regardless of the major, I would focus on gaining research experience early, learning data analysis and AI tools, and developing strong scientific writing skills. AI will become an important tool in biomedical research, but curiosity, critical thinking, and the ability to ask meaningful research questions will continue to have the greatest long-term impact.
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Lorenzo’s Answer

It's great that you're thinking about what interests you now and how you can make a meaningful impact in the future. Instead of deciding whether neuroscience or genetics is better, focus on choosing a path that gives you a strong foundation and lets you explore different options. This will help you discover what type of research you truly enjoy.

To find out if neuroscience, genetics, or another field suits you, try to get hands-on experience in real research settings. Work in a lab, get involved in data projects, and try writing or reviewing research. You might find that you love the ideas in neuroscience but prefer data analysis, or that genetics excites you because it answers big questions about human development and identity.

A good way to test your interest is to see if you're still curious about the work after a few weeks, even when it's challenging. Research careers thrive on sustained curiosity rather than constant excitement.

So, choose an undergraduate path that gives you a strong scientific base and plenty of research opportunities. If you pick Neuroscience, make sure to learn biology, statistics, and research methods. If you choose Molecular Genetics, explore cognition, ethics, and behavior through electives and other activities.

You don't have to decide now whether your future lies in neuroscience, genetics, AI, or bioethics. Your interests might lead you to connect these fields in unique ways, which can be incredibly valuable in science.
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