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 Michigan
Skills you'll gain: Debugging, LLM Application, Data-oriented programming, Code Reusability, Python Programming, Data Manipulation, Data Analysis, Functional Design
★ 4.4 (8) · Intermediate · Course · 1 - 4 Weeks

Korea Advanced Institute of Science and Technology(KAIST)
Skills you'll gain: Physiology, Biochemistry, Cell Biology, Pharmacology, Molecular Biology, Molecular, Cellular, and Microbiology, Life Sciences, Blood Pressure, Immunology, Medical Science and Research, Biology, Microbiology, Oncology
★ 4.8 (11) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Graph Theory, Data Structures, Algorithms, Computer Programming, Computational Thinking, Memory Management, Software Visualization, Performance Tuning
★ 4.6 (7) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Command-Line Interface, Unix Shell, Unix Commands, Unix, Linux, File Management, Linux Commands, File Systems, File I/O, Systems Architecture
★ 4.9 (15) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Construction Engineering, Building Codes, Engineering, Scientific, and Technical Instruments, Structural Engineering, Structural Analysis, Engineering Analysis, Construction, Engineering Calculations, Simulation and Simulation Software, Finite Element Methods, Civil Engineering, Construction Management, Mathematical Software, Engineering Practices, Environmental Monitoring, Safety Standards, Civil and Architectural Engineering, Failure Analysis, Engineering Design Process, Laboratory Testing
★ 4.8 (9) · Advanced · Specialization · 3 - 6 Months

Skills you'll gain: Kubernetes, Containerization, Docker (Software), Development Environment, Application Deployment, Software Development
★ 4.3 (6) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Plotly, Plot (Graphics), Data Visualization, Scientific Visualization, Datamaps, Interactive Data Visualization, Data Visualization Software, Scatter Plots, Python Programming, Exploratory Data Analysis, Data Import/Export, Data Analysis, Medical Science and Research, Analysis
★ 4.2 (13) · Beginner · Guided Project · Less Than 2 Hours

University of Pennsylvania
Skills you'll gain: Data Storytelling, Data Presentation, Feature Engineering, Data Visualization Software, Unsupervised Learning, SQL, Data Analysis, Model Evaluation, Seaborn, Data Visualization, Tableau Software, Predictive Modeling, Exploratory Data Analysis, Predictive Analytics, Analytics, Presentations, Database Management, Advanced Analytics, Data Science, Machine Learning
★ 4.5 (6) · Beginner · Specialization · 1 - 3 Months

Packt
Skills you'll gain: Data Analysis Expressions (DAX), Customer Insights, Power BI, Data Modeling, Customer Analysis, Dashboard, Data Transformation, Dashboard Creation, Data Wrangling, Data Import/Export, Data Manipulation, Database Design, Business Intelligence, Interactive Data Visualization, Data Integration, Star Schema, Time Series Analysis and Forecasting, Data Cleansing, Relational Databases, Data Processing
★ 4.7 (9) · Beginner · Specialization · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Peer Review, Data Literacy, Research, Quantitative Research, Report Writing, Analytical Skills, Science and Research, Research Methodologies, Data Analysis
★ 4.9 (7) · Intermediate · Course · 1 - 4 Weeks

DeepLearning.AI
Skills you'll gain: Federated Learning, Fine-tuning, AI Security, Large Language Modeling, PyTorch (Machine Learning Library), Model Optimization, Information Privacy, LLM Application, Model Training, Distributed Computing, Machine Learning
★ 4.5 (14) · Beginner · Project · Less Than 2 Hours

Skills you'll gain: Unity Engine, Game Design, Animation and Game Design, Video Game Development, Virtual Environment, Animations, User Interface (UI), UI Components, User Interface (UI) Design, Program Development, Debugging, Scripting, C# (Programming Language)
★ 5 (18) · Mixed · Course · 1 - 4 Weeks