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.

University of California San Diego
Skills you'll gain: Event-Driven Programming, Interactive Data Visualization, Java, Java Programming, Object Oriented Programming (OOP), User Interface (UI), Object Oriented Design, Computer Programming, User Interface (UI) Design, Algorithms, Software Engineering, Geospatial Mapping, Programming Principles, Software Documentation
★ 4.7 (5.8K) · Intermediate · Course · 1 - 3 Months
Michigan State University
Skills you'll gain: Photography, Peer Review, Photo/Video Production and Technology, Image Quality, Creativity
★ 4.8 (5.3K) · Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Multimodal Prompts, Prompt Engineering, Prompt Engineering Tools, Prompt Patterns, Responsible AI, AI literacy, Context Engineering
★ 4.8 (4.4K) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Building Codes, Construction, Safety Standards, Building Services Engineering, Building Design, Facility Management and Maintenance, Hazard Analysis, Safety and Security, Firewall, Design Specifications, Systems Integration
★ 4.6 (79) · Intermediate · Course · 1 - 4 Weeks

The Hong Kong University of Science and Technology
Skills you'll gain: Differential Equations, Linear Algebra, Matlab, Engineering Analysis, Numerical Analysis, Integral Calculus, Mathematical Software, Mechanical Engineering, Calculus, Engineering Calculations, electromagnetics, Algebra, Applied Mathematics, Mathematical Modeling, Engineering, Simulation and Simulation Software, Advanced Mathematics, Geometry, Computational Thinking, Mechanics
★ 4.8 (7.8K) · Beginner · Specialization · 3 - 6 Months
Skills you'll gain: Data Storytelling, Data Ethics, Data Analysis, Data-Driven Decision-Making, Analytics, Workflow Management, Data Science, Advanced Analytics, Analytical Skills, Business Solutions, Technical Communication, Process Design, Project Management, Communication, Stakeholder Communications, Machine Learning
★ 4.7 (4K) · Advanced · Course · 1 - 3 Months

Skills you'll gain: Phlebotomy, Blood Collection, Sterilization, Urinalysis, Patient Communication, Medical Terminology, Patient-centered Care, Nutrition Education, Infection Control, Asepsis, Nutrition and Diet, Pathology, Basic Patient Care, Patient Education And Counseling, Vital Signs, Geriatrics, Laboratory Testing, Direct Patient Care, Venipuncture, Hand Hygiene
★ 4.8 (62) · Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Respiration, Human Musculoskeletal System, Cardiology, Blood Pressure, Respiratory Care, Respiratory Therapy, Pulmonology, Capillary, Hemodynamics, Clinical Practices, Cell Biology, Physiology, Anatomy, Endocrinology, Diagnostic Tests, Patient Evaluation, Nephrology, Orthopedics, Cardiac Dysrhythmia, Interactive Learning
★ 4.5 (78) · Beginner · Specialization · 3 - 6 Months
Duke University
Skills you'll gain: Sensory Systems Analysis, Neurology, Physiology, Anatomy, Life Sciences, Electrophysiology, Cell Biology, Psychology, Pathology, Molecular Biology, Biology, Substance Abuse
★ 4.9 (3.1K) · Advanced · Course · 3 - 6 Months
Skills you'll gain: Debugging, Python Programming, Cybersecurity, Programming Principles, File I/O, IT Automation, Data Import/Export, Algorithms, Automation, Program Development, Computer Programming, File Management, Maintainability
★ 4.8 (3.6K) · Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Data Visualization, Dashboard Creation, Excel Formulas, Dashboard, Pivot Tables And Charts, Plot (Graphics), Microsoft Excel, Data Validation, Data Management, Data Cleansing, Data Entry, Data Sharing, Data Import/Export, Spreadsheet Software, Data Transformation, Microsoft Office, Data Analysis Software, Analysis, Data Integrity, Problem Solving
★ 4.7 (4.1K) · Beginner · Specialization · 3 - 6 Months

University of Amsterdam
Skills you'll gain: Statistical Hypothesis Testing, Probability & Statistics, Statistical Methods, Statistics, Statistical Analysis, Quantitative Research, Data Analysis Software
★ 4.6 (4.7K) · Beginner · Course · 1 - 3 Months