First aid courses can help you learn how to recognize common emergencies, understand basic response principles, and communicate effectively with trained professionals. You can build skills in identifying signs of illness or injury, assessing situations safely, and applying general preparedness concepts. Many courses introduce frameworks, scenario-based learning, and tools that support building confidence in responding to unexpected events.
Johns Hopkins University
Skills you'll gain: Sanitation, Crisis Intervention, Public Health, Public Health and Disease Prevention, Water Resources, Social and Human Services, Chronic Diseases, Emergency Response, Nutritional Assessment, Environment Health And Safety, Nutrition and Diet, Community Health, Health Systems, Water Sustainability, Environmental Resource Management, Epidemiology, Health Care, Infectious Diseases, Mitigation, Patient Treatment
★ 4.8 (572) · Beginner · Course · 1 - 3 Months

University of Washington
Skills you'll gain: Model Evaluation, Applied Machine Learning, Feature Engineering, Machine Learning Methods, Regression Analysis, Machine Learning, Image Analysis, Machine Learning Algorithms, AI Personalization, Artificial Intelligence and Machine Learning (AI/ML), Supervised Learning, Model Training, Artificial Intelligence, Deep Learning, Computer Vision, Transfer Learning, Application Development, Predictive Modeling, Model Deployment, Python Programming
★ 4.6 (14K) · Mixed · Course · 1 - 3 Months

DeepLearning.AI
Skills you'll gain: Supervised Learning, Applied Machine Learning, Jupyter, Scikit Learn (Machine Learning Library), Machine Learning, Model Training, NumPy, Machine Learning Algorithms, Predictive Modeling, Classification Algorithms, Feature Engineering, Artificial Intelligence, Model Evaluation, Data Preprocessing, Python Programming, Logistic Regression, Model Optimization, Regression Analysis, Algorithms
★ 4.9 (32K) · Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Rmarkdown, Version Control, Data Science, R (Software), Git (Version Control System), GitHub, Software Versioning, Data Literacy, General Science and Research, Data Analysis, R Programming, Development Environment, Statistical Reporting, Software Installation
★ 4.6 (34K) · Mixed · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Clinical Trials, Clinical Research Ethics, Clinical Research, Healthcare Ethics, Institutional Review Board (IRB), Scientific Methods, Statistical Reporting, Informed Consent, Ethical Standards And Conduct, Drug Development, Sample Size Determination, Statistical Methods, Statistical Analysis, Statistical Inference
★ 4.7 (4.4K) · Mixed · Course · 1 - 3 Months

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Scala Programming, Apache Spark, Apache Hadoop, Application Design, User Interface (UI), Distributed Computing, Programming Principles, Leaflet (Software), Big Data, Data Processing, Data Structures, Software Design Patterns, Functional Design, Object Oriented Design, Data Manipulation, Object Oriented Programming (OOP), Interactive Data Visualization, Scientific Visualization, Computer Programming, Algorithms
★ 4.7 (11K) · Intermediate · Specialization · 3 - 6 Months

University of Pittsburgh
Skills you'll gain: Laboratory Testing, Diagnostic Tests, Medical Terminology, General Medical Tests and Procedures, Pharmaceutical Terminology, Pathology, Vital Signs, Clinical Experience, Patient Communication, Patient Safety, Emergency and Intensive Care, Medication Administration, Intravenous Therapy, English Language
★ 4.8 (3.3K) · Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Google Ads, Keyword Research, Target Audience, Pay Per Click Advertising, Search Engine Marketing, Advertising Campaigns, Campaign Management, Advertising, Online Advertising, Digital Advertising, Paid media, Marketing, Digital Marketing, Return On Investment
★ 4.4 (6K) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Data Storytelling, Data Presentation, Plotly, Data Visualization Software, Data Visualization, Plot (Graphics), Dashboard, Interactive Data Visualization, Dashboard Creation, Matplotlib, Geospatial Information and Technology, Histogram, Spatial Data Analysis, Seaborn, Data Analysis, Scatter Plots, Jupyter, Geospatial Mapping, Python Programming
★ 4.5 (12K) · Intermediate · Course · 1 - 3 Months

The University of Edinburgh
Skills you'll gain: Behavioral Health, Pain Management, Applied Behavior Analysis, Scientific Methods, Behavior Management, Stress Management, Empathy & Emotional Intelligence, Ethical Standards And Conduct, Qualitative Research, Science and Research, Physiology
★ 4.8 (5.4K) · Mixed · Course · 1 - 3 Months

Universidad ORT Uruguay
Skills you'll gain: Code Reusability, Video Game Development, Software Engineering, Program Development, Programming Principles, Game Design, Software Testing, Software Documentation, Software Development, Event-Driven Programming, Computer Programming, Computational Thinking, Software Design, Animations
★ 4.8 (2.7K) · Beginner · Course · 1 - 3 Months

Rice University
Skills you'll gain: Human Musculoskeletal System, Anatomy, Endocrinology, Orthopedics, Kinesiology, Physiology, Neurology, Medical Terminology, Biochemistry, Cell Biology, Biology, Chemistry, Clinical Practices, Molecular, Cellular, and Microbiology, Lifelong Learning
★ 4.7 (170) · Intermediate · Specialization · 3 - 6 Months