The Team

Dr. Céline Vetter

Dr. Céline Vetter.  Assistant Professor in Integrative Physiology and Director of the Circadian and Sleep Epidemiology Laboratory (CASEL) at the University of Colorado Boulder. You can download my here ( CV_082018). In brief, I received my PhD training in Till Roenneberg’s lab for human chronobiology at the Ludwig-Maximilian-University in Munich, Germany. After implementing work schedules tuned to inter-individual differences in sleep timing in a steel factory in for my postdoctoral work in the Roenneberg Lab, I joined the Channing Lab (Brigham and Women’s Hospital and Harvard Medical School) in Boston to study the associations of shift work and disrupted sleep with chronic disease risk. I joined the faculty there in 2016, and then moved to the University of Colorado Boulder as a tenure-track Assistant Professor in September 2017. As a translational chronobiologist, I use large-scale epidemiological datasets to identify modifiable sleep and circadian risk factors of chronic disease, which can be leveraged in intervention studies to improve health in wellbeing, in day workers, shift workers, as well as in patient populations. I am also a mum of a 5-year girl, a passionate cook, and appreciative of the beautiful things in life (mountains! art! music! books!).

Interested in joining the team? Positions will be announced in the News! section. If you want to inquire about potential support for fellowship applications, send your CV along with 3 references and a cover letter to celine.vetter AT

Josef Fritz. Postdoctoral Fellow (Biostatistics). Coming from a mathematical background, I first came in touch with clinical research through my interest in statistical programming. Subsequently, I received my PhD training in Biostatistics and Epidemiology at the Department of Medical Statistics and Bioinformatics at the Medical University of Innsbruck, Austria. As a PostDoc, I now want to learn from the new environment and researchers here at CU Boulder, and deepen my expertise in causal reasoning by tackling various research questions around sleep, circadian misalignment and its health consequences, using data of large, established US cohorts (such as the Hispanic Community Health Study or the Nurses’ Health Studies). In my free time, I can often be found outside running, biking, hiking, or skiing. From time to time, I also enjoy playing board and card games with some friends.

Larissa Hunt

Larissa Hunt. I am an undergraduate IPHY student in the lab. The work in the lab includes an undergraduate Honors Thesis, which examines light exposure profiles at the eye-level and their association with sleep. I am also the team lead of the data analysis team for a pilot study in the lab. I hope to continue this research in graduate school with a focus on translational research that can better help us understand different lifestyle modifications individuals can implement to decrease the prevalence of chronic diseases such as diabetes and obesity and their related health consequences. In my free time, I like to relax by being outside hiking, by practicing yoga, and by reading books.

Akram Imam

Akram Imam, B.Sc. I am a Master student in the Circadian and Sleep Epidemiology Laboratory. I graduated form the University of Colorado Boulder in the spring of 2018, with an Integrative Physiology major. I am also very much involved in kicking off our first pilot study, and am the team lead for the melatonin assessment team of this study. I wish to continue to grow in this field and use my expertise to help individuals, in what way, I am not entirely sure yet. My hobbies include playing basketball, going on runs, watching T.V., indulging in food and relaxing.

Connor Phibbs

Connor Phibbs. I am an undergraduate student majoring in Integrative Physiology at CU Boulder. In the lab, I have been working on designing RedCap screening and study questionnaire assessments. I will also help recruit, coordinate, and instruct participants throughout our pilot study. I am also excited to learn more about programming in R, data management, and RIA analysis to assess dim light melatonin onset. Academically, I graduated from Arapahoe High School in Centennial Colorado and then came to CU in the fall of 2016. I hope to go to med school in the future and don’t care where I go. I enjoy playing soccer, hiking, watching movies, and hanging out with friends.

Annika Reuter

Annika Reuter.I am going into my senior year at CU, and plan to graduate in May of 2019 with a double major in Integrative Physiology and Spanish. Following graduation, I plan to pursue an accelerated nursing program to get my BSN, and then continue my studies to become a Nurse Practitioner.  In the lab, I help manage the sensors that we use to track light, activity, and sleep. I also am working on standard operating procedures for handling the data from these sensors, as well as with participant on-boarding and communication. Through working in the lab, I’ve gained a great appreciation for just how extensively sleep and circadian rhythms impact human health (both physical and mental), and it is exciting that what we learn about the factors that impact sleep and circadian rhythms can be useful to the patients I will treat in the future. Outside of the lab, I love running and hiking out in the natural beauty of Colorado! I also enjoy reading (Jane Austen and Lord of the Rings are my faves) and cooking tasty vegetarian food.

Beau Bentley. I am currently starting my senior year at CU as a Integrative Physiology major with a certificate in public health. In the lab, I am part of data analysis team, which involves activities such as writing code for graphs and analyses in R. I also work on helping to spread the word on our study through website and social media outlets. The study of public health, and more so the impact that sleep has on individuals well being is something that interests me greatly.  I hope to continue my education with either a concurrent degree masters program at CU through continuing research in the Vetter lab, or possibly pursuing a nursing degree at University of Colorado Denver. In my spare time I love to climb, ski, go camping, and anything else that involves the outdoors!

Katherine Buhl. I currently am an undergraduate student at CU Boulder and will  graduate in December 2019 with a degree in Integrative Physiology with a Certificate in Public Health. My love for science started with environmental science and climate change topics but was quickly turned to the human sciences as soon as I took my fist nutrition class here at CU. I have a particular interest in epidemiology and biostatistics and how they can benefit national and global nutrition status. In the lab I assist with creating R code and data management. I am excited to work with Dr. Vetter, her colleagues and my peers moving forward to learn more about epidemiology and how it can impact public health. In my free time enjoy skiing, ski touring, trail running and cooking!

Lab Alumni

Kendra Downer: January-September 2018
Current Position:  Kendra is currently in the process of applying to medical school and hopes to start next fall (fingers crossed!).