Both vaping and smoking are harmful to human health, but based on the available evidence, smoking appears to be more harmful than vaping. However, this does not mean that vaping is safe. Here are some key points to consider:

Vaping:

• Vaping is less harmful than smoking, but its still not safe.
• E-cigarette aerosol can contain harmful and potentially harmful substances, including nicotine, heavy metals like lead, volatile organic compounds (VOCs), and cancer-causing chemicals.
• Research suggests that vaping is bad for your heart and lungs, and can worsen several heart disease risk factors at levels equal to tobacco cigarettes.
• Vaping can cause unintended injuries, such as defective e-cigarette batteries that have caused fires and explosions, some of which have resulted in serious injuries.

Smoking:

• Smoking is more harmful than vaping.
• Smoking causes cancer, heart disease, stroke, lung diseases, diabetes, and chronic obstructive pulmonary disease (COPD) .
• Smoking is the leading cause of preventable death worldwide.

In conclusion, both vaping and smoking are harmful to human health, but smoking is more harmful than vaping. However, vaping is not safe and can still cause harm to your heart, lungs, and overall health. The best way to protect your health is to avoid both vaping and smoking altogether.