![portrait de Dr. Paula Littlejohn](/sites/default/files/styles/career_image/public/2023-05/Paula%20Littlejohn.jpeg?itok=XB7NJlNJ)
Dr. Paula Littlejohn (she/her)
Career Profiles
Postdoctoral Research Fellow
![Twenty-sided die](/sites/default/files/styles/resource_card_image_360x300_/public/2023-01/twenty-sided%20dice.jpg?itok=AUYETssh)
How Likely Is It?
Backgrounders
Learn about probability, a branch of mathematics that helps us predict if something might happen.
![Portrait de Dr. Marcia Anderson](/sites/default/files/styles/career_image/public/2022-08/Marcia%20Anderson.jpg?itok=c7C89pWq)
Marcia Anderson (she/her)
Career Profiles
Physician and Vice-Dean Indigenous Health, Social Justice and Anti-Racism
![Beijing National Olympic Stadium](/sites/default/files/styles/resource_card_image_360x300_/public/2022-02/Beijing_olympic_stadium.jpg?itok=JhuZmq0A)
Go for the Gold with STEM
STEM Explained
Learn about how STEM powers the Winter Olympics.
![Human lungs with scientists inside](/sites/default/files/styles/resource_card_image_360x300_/public/2021-12/human-lungs-with_scientists.jpg?itok=O8jY8B9r)
Just Breathe: Lungs and Asthma
Backgrounders
Learn about asthma and what scientists are doing to study it.
![Medical equipment used to check homeostasis](/sites/default/files/styles/resource_card_image_360x300_/public/2021-11/medical-equipment-and-instruments.jpg?itok=U2tm9YmB)
Introduction to Homeostasis and Regulation
Backgrounders
Learn about homeostasis and how the body regulates temperature, blood pressure, blood pH and blood sugar.
![3D rendering of the human digestive system](/sites/default/files/styles/resource_card_image_360x300_/public/2021-10/human-digestive-system-anatomy.jpg?itok=2hig3KT-)
How Animals Digest Their Food
Backgrounders
Learn about how different animals digest their foods and the organs of their digestive systems.
![3D Illustration of human lungs](/sites/default/files/styles/resource_card_image_360x300_/public/2021-10/Human-lungs.jpg?itok=8tcxai2_)
Respiratory System in Vertebrate Animals
Backgrounders
Learn about how different animals breathe, from fish to humans.
![Working at laptop with stethoscope on desk](/sites/default/files/styles/resource_card_image_360x300_/public/2022-02/national-cancer-institute-NFvdKIhxYlU-unsplash.jpg?itok=DE1SoRTn)
Summer Symposium Series: Health Sciences Career Resources
Backgrounders
A career in the health sciences would let you help people directly in a very 'hands-on' way!
![Erica Dupuis montrant comment utiliser un stéthoscope à une jeune fille](/sites/default/files/styles/career_image/public/2020-10/Erica%20Dupuis_0.png?itok=fzaOIntO)
Erica Dupuis
Cardiac Registered Nurse
![Human kidney cross-section](/sites/default/files/styles/resource_card_image_360x300_/public/2020-04/human-kidney-cross-section.jpg?itok=3VpDHDAd)
Osmosis and Its Role in Human Biology and Health
STEM Explained
Learn how and where osmosis takes place in the digestive system and excretory system and the role of osmosis in kidney dialysis.
![Nutrition label on the side of a pop can](/sites/default/files/styles/resource_card_image_360x300_/public/2020-03/nutrition-information-on-a-can.jpg?itok=4o0ZthQc)
The Science Behind Calories and Nutrition Facts Labels
STEM Explained
Find out how scientists figure out the information on food nutrition labels and why that information can help to keep you healthy.
![Bread and wheat with a warning sign](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/gluten-intolerance-with-bread-and-wheat.jpg?itok=Ytq99uNA)
Celiac Disease: When You Really Need to Stay Gluten-Free
STEM Explained
Celiac disease is an autoimmune disorder. Gluten triggers an immune system response, seriously affecting nutrition.